uxcell&reg; 15kg 33lb Force 3.2" Stroke Ball Joint Support Auto Gas Spring 10.4" Product Name : Gas Spring;Material : Metal;Color : Black, Silver Tone Force : 15kg / 33lb;Stroke : 82mm / 3.2";Stroke Rod Diameter : 8mm / 0.31" Tube Diameter : 18mm / 0.7";Thread Diameter : 7.5mm / 0.3" Length ( screw center to screw center) : 250mm/ 9.8";Total Length : 266mm / 10.4" Net Weight : 184g;Package Content : 1 x Gas Spring