uxcell 5kg 11lb Lift Support Gas Strut Shock Spring Prop 8" Long Product Name : Gas Spring;Material : Metal;Color : Black, Silver Tone Force : 5kg /11lb;Stroke : 50mm /2";Overall Size : 20 x 1.5cm/8" x 0.6"(L*Max.D) Hole Diameter : 6mm/0.24";Hole Distance : 18cm/7.1"(Center to Center);Rod Diameter : 6mm/0.24" Tube Diameter (Approx.) : 15mm / 0.59";Tube Length (Black Finish) : 10cm/3.9" Weight : 88g;Package Content : 1 x Machinery Gas Spring