Product Infon Our scissor jacks stabilize and level your travel trailer or 5th wheel. Lifting capacity of 6,500 Pounds per jack. Universal design of sturdy steel construction fits most RVs. Permanently mounted jacks are conveniently concealed wheot in use. Can be welded on. Easy installation. Maximum Lift : 20 Inch With Crank Handle : Yes Type : Scissor Operation Type : Mechanical Weight Capacity : 6500 Pound Material : Steel With Motor : No Quantity : Single