uxcell 160mm Stroke 8mm Hole Dia 25Kg 55 lb Force Lift Strut Prop Auto Gas Spring Product Name : Lift Gas Spring;Material : Metal;Main Color : Black, Silver Tone Force : 25Kg / 55 lb;Stroke : 160mm / 6.3";Hole Diameter : 8mm / 5/16" Rod Diameter : 8mm / 0.32";Tube Diameter : 18mm / 0.72";Tube Length(Black Finish) : 200mm / 7.9" Hole Distance ( hole center to hole center) : 400mm/ 15.7";Total Length : 415mm / 16.3" Net Weight : 207g;Package Content : 1 x Lift Gas Spring