Collection: Products

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable 5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).Variant sold out or unavailable 5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).Variant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable 5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).Variant sold out or unavailable 5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).Variant sold out or unavailable 5.75" (146mm). Fits Optical Tube Diameter 5 3/8" (137mm) to 5 5/8" (143mm).Variant sold out or unavailable 6" (152mm). Fits Optical Tube Diameter 5 5/8" (144mm) to 5 7/8" (149mm).Variant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable 5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).Variant sold out or unavailable 5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).Variant sold out or unavailable 5.75" (146mm). Fits Optical Tube Diameter 5 3/8" (137mm) to 5 5/8" (143mm).Variant sold out or unavailable 6" (152mm). Fits Optical Tube Diameter 5 5/8" (144mm) to 5 7/8" (149mm).Variant sold out or unavailable 6.25" (158mm). Fits Optical Tube Diameter 5 7/8" (150mm) to 6 1/8" (156mm).Variant sold out or unavailable 6.5" (165mm). Fits Optical Tube Diameter 6 1/8" (157mm) to 6 3/8" (162mm).Variant sold out or unavailable 6.75" (171mm). Fits Optical Tube Diameter 6 3/8" (163mm) to 6 5/8" (168mm).Variant sold out or unavailable 7" (178mm) . Fits Optical Tube Diameter 6 5/8" (169mm) to 6 7/8" (174mm).Variant sold out or unavailable 7.25" (184mm). Fits Optical Tube Diameter 6 7/8" (175mm) to 7 1/8" (180mm).Variant sold out or unavailable 7.5" (190mm). Fits Optical Tube Diameter 7 1/8" (181mm) to 7 3/8" (187mm).Variant sold out or unavailable

37mmVariant sold out or unavailable 40.5mmVariant sold out or unavailable 43mmVariant sold out or unavailable 46mmVariant sold out or unavailable 49mmVariant sold out or unavailable 52mmVariant sold out or unavailable 55mmVariant sold out or unavailable 58mmVariant sold out or unavailable 62mmVariant sold out or unavailable 67mmVariant sold out or unavailable 72mmVariant sold out or unavailable 77mmVariant sold out or unavailable 82mmVariant sold out or unavailable 86mmVariant sold out or unavailable 95mmVariant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable 5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).Variant sold out or unavailable 5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).Variant sold out or unavailable 5.75" (146mm). Fits Optical Tube Diameter 5 3/8" (137mm) to 5 5/8" (143mm).Variant sold out or unavailable 6" (152mm). Fits Optical Tube Diameter 5 5/8" (144mm) to 5 7/8" (149mm).Variant sold out or unavailable 6.25" (158mm). Fits Optical Tube Diameter 5 7/8" (150mm) to 6 1/8" (156mm).Variant sold out or unavailable 6.5" (165mm). Fits Optical Tube Diameter 6 1/8" (157mm) to 6 3/8" (162mm).Variant sold out or unavailable 6.75" (171mm). Fits Optical Tube Diameter 6 3/8" (163mm) to 6 5/8" (168mm).Variant sold out or unavailable 7" (178mm) . Fits Optical Tube Diameter 6 5/8" (169mm) to 6 7/8" (174mm).Variant sold out or unavailable 7.25" (184mm). Fits Optical Tube Diameter 6 7/8" (175mm) to 7 1/8" (180mm).Variant sold out or unavailable 7.5" (190mm). Fits Optical Tube Diameter 7 1/8" (181mm) to 7 3/8" (187mm).Variant sold out or unavailable

37mmVariant sold out or unavailable 40.5mmVariant sold out or unavailable 43mmVariant sold out or unavailable 46mmVariant sold out or unavailable 49mmVariant sold out or unavailable 52mmVariant sold out or unavailable 55mmVariant sold out or unavailable 58mmVariant sold out or unavailable 62mmVariant sold out or unavailable 67mmVariant sold out or unavailable 72mmVariant sold out or unavailable 77mmVariant sold out or unavailable 82mmVariant sold out or unavailable 86mmVariant sold out or unavailable 95mmVariant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable 5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).Variant sold out or unavailable 5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).Variant sold out or unavailable 5.75" (146mm). Fits Optical Tube Diameter 5 3/8" (137mm) to 5 5/8" (143mm).Variant sold out or unavailable 6" (152mm). Fits Optical Tube Diameter 5 5/8" (144mm) to 5 7/8" (149mm).Variant sold out or unavailable 6.25" (158mm). Fits Optical Tube Diameter 5 7/8" (150mm) to 6 1/8" (156mm).Variant sold out or unavailable 6.5" (165mm). Fits Optical Tube Diameter 6 1/8" (157mm) to 6 3/8" (162mm).Variant sold out or unavailable 6.75" (171mm). Fits Optical Tube Diameter 6 3/8" (163mm) to 6 5/8" (168mm).Variant sold out or unavailable 7" (178mm) . Fits Optical Tube Diameter 6 5/8" (169mm) to 6 7/8" (174mm).Variant sold out or unavailable 7.25" (184mm). Fits Optical Tube Diameter 6 7/8" (175mm) to 7 1/8" (180mm).Variant sold out or unavailable 7.5" (190mm). Fits Optical Tube Diameter 7 1/8" (181mm) to 7 3/8" (187mm).Variant sold out or unavailable 8" (203mm). Fits Optical Tube Diameter 7 5/8" (193mm) to 7 7/8" (202mm).Variant sold out or unavailable 8.376" (212mm). Fits Optical Tube Diameter 8" (203mm) to 8 1/4" (210mm).Variant sold out or unavailable 8.377" (212mm). Fits Optical Tube Diameter 8" (203mm) to 8 1/4" (210mm).Variant sold out or unavailable 8.75" (222mm). Fits Optical Tube Diameter 8 3/8" (213mm) to 8 5/8" (219mm).Variant sold out or unavailable 9.25" (235mm). Fits Optical Tube Diameter 8 3/4" (222mm) to 9 1/8" (232mm).Variant sold out or unavailable 9.5" (241mm). Fits Optical Tube Diameter 9 1/8" (232mm) to 9 3/8" (238mm).Variant sold out or unavailable 9.75" (247mm) . Fits Optical Tube Diameter 9 3/8" (239mm) to 9 5/8" (244mm).Variant sold out or unavailable 10" (254mm). Fits Optical Tube Diameter 9 5/8" (245mm) to 9 7/8" (251mm).Variant sold out or unavailable 10.5" (266mm). Fits Optical Tube Diameter 10 1/8" (257mm) to 10 3/8" (264mm).Variant sold out or unavailable 10.75" (273mm). Fits Optical Tube Diameter 10 3/8" (265mm) to 10 5/8" (270mm).Variant sold out or unavailable 11.5" (293mm). Fits Optical Tube Diameter 11 1/8" (283mm) to 11 3/8" (289mm).Variant sold out or unavailable 12" (305mm). Fits Optical Tube Diameter 11 5/8" (295mm) to 11 7/8" (302mm).Variant sold out or unavailable 12.5" (317mm). Fits Optical Tube Diameter 12 1/8" (308mm) to 12 3/8" (314mm).Variant sold out or unavailable 13" (330mm). Fits Optical Tube Diameter 12 5/8" (321mm) to 12 7/8" (327mm).Variant sold out or unavailable 13.75" (349mm). Fits Optical Tube Diameter 13 3/8" (340mm) to 13 5/8" (346mm).Variant sold out or unavailable 14.5" (368mm). Fits Optical Tube Diameter 14 1/8" (358mm) to 14 3/8" (365mm).Variant sold out or unavailable 15.25" (387mm). Fits Optical Tube Diameter 14 7/8" (378mm) to 15 1/8" (384mm).Variant sold out or unavailable 15.75" (400mm). Fits Optical Tube Diameter 15 3/8" (390mm) to 15 5/8" (396mm).Variant sold out or unavailable 16" (406mm). Fits Optical Tube Diameter 15 5/8" (397mm) to 15 7/8" (403mm).Variant sold out or unavailable

2" (50mm). Fits Optical Tube Diameter 1 5/8" (41mm) to 1 7/8" (47mm).Variant sold out or unavailable 2.25" (57mm). Fits Optical Tube Diameter 1 7/8" (48mm) to 2 1/8" (53mm).Variant sold out or unavailable 2.5" (63mm). Fits Optical Tube Diameter 2 1/8" (54mm) to 2 3/8" (59mm).Variant sold out or unavailable 2.75" (70mm). Fits Optical Tube Diameter 2 3/8" (60mm) to 2 5/8" (66mm).Variant sold out or unavailable 3" (76mm). Fits Optical Tube Diameter 2 5/8" (68mm) to 2 7/8" (73mm).Variant sold out or unavailable 3.25" (82mm). Fits Optical Tube Diameter 2 7/8" (74mm) to 3 1/8" (79mm).Variant sold out or unavailable 3.5" (90mm). Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm).Variant sold out or unavailable 3.75" (95mm). Fits Optical Tube Diameter 3 3/8" (87mm) to 3 5/8" (92mm).Variant sold out or unavailable 4" (101mm). Fits Optical Tube Diameter 3 5/8" (93mm) to 3 7/8" (98mm).Variant sold out or unavailable 4.25" (108mm). Fits Optical Tube Diameter 3 7/8" (99mm) to 4 1/8" (105mm).Variant sold out or unavailable 4.5" (114mm). Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm).Variant sold out or unavailable 4.75" (121mm). Fits Optical Tube Diameter 4 3/8" (112mm) to 4 5/8" (117mm).Variant sold out or unavailable 5" (127mm). Fits Optical Tube Diameter 4 5/8" (118mm) to 4 7/8" (124mm).Variant sold out or unavailable 5.25" (133mm). Fits Optical Tube Diameter 4 7/8" (125mm) to 5 1/8" (130mm).Variant sold out or unavailable 5.5" (140mm). Fits Optical Tube Diameter 5 1/8" (131mm) to 5 3/8" (136mm).Variant sold out or unavailable 5.75" (146mm). Fits Optical Tube Diameter 5 3/8" (137mm) to 5 5/8" (143mm).Variant sold out or unavailable 6" (152mm). Fits Optical Tube Diameter 5 5/8" (144mm) to 5 7/8" (149mm).Variant sold out or unavailable 6.25" (158mm). Fits Optical Tube Diameter 5 7/8" (150mm) to 6 1/8" (156mm).Variant sold out or unavailable 6.5" (165mm). Fits Optical Tube Diameter 6 1/8" (157mm) to 6 3/8" (162mm).Variant sold out or unavailable 6.75" (171mm). Fits Optical Tube Diameter 6 3/8" (163mm) to 6 5/8" (168mm).Variant sold out or unavailable 7" (178mm) . Fits Optical Tube Diameter 6 5/8" (169mm) to 6 7/8" (174mm).Variant sold out or unavailable 7.25" (184mm). Fits Optical Tube Diameter 6 7/8" (175mm) to 7 1/8" (180mm).Variant sold out or unavailable 7.5" (190mm). Fits Optical Tube Diameter 7 1/8" (181mm) to 7 3/8" (187mm).Variant sold out or unavailable