Photo 1 of MASTERY MART Office Chair Gas Lift Cylinder Replacement, Hydraulic Pneumatic Shock Piston, Heavy Duty 450 LBs/ 204 KGs, Universal Size Fits Most Office Chair, 6'' Travel Length, Class 4 (Matte Black) 6'' Travel Length Matte Black

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Photo 1 of MASTERY MART Office Chair Gas Lift Cylinder Replacement, Hydraulic Pneumatic Shock Piston, Heavy Duty 450 LBs/ 204 KGs, Universal Size Fits Most Office Chair, 6'' Travel Length, Class 4 (Matte Black) 6'' Travel Length Matte BlackPhoto 2 of MASTERY MART Office Chair Gas Lift Cylinder Replacement, Hydraulic Pneumatic Shock Piston, Heavy Duty 450 LBs/ 204 KGs, Universal Size Fits Most Office Chair, 6'' Travel Length, Class 4 (Matte Black) 6'' Travel Length Matte Black