90mm Stroke 20kg Force Lift Support Gas Spring Product Name : Gas Spring;Material : Metal;Color : Silver Tone Force : 20kg / 44lb;Stroke : 90mm / 3.5";Hole Size : 19 x 4mm / 0.7" x 0.15"(L*W) Hole Diameter : 4mm / 0.15";Rod Diameter : 6mm / 0.23";Tube Diameter : 15mm / 0.59" Tube Length : 120mm /4.7";Install Distance : 250mm / 9.8";Total Length : 29cm/ 11.4" Net Weight : 147g;Package Content : 1 x Gas Spring