This heavy duty jack is a must have for the off-road enthusiast. It is rated at 6,600lbs and has a lift height of 55". They have an adjustable top clamp clevis that allows them to be used for clamping, lifting, winching, or hoisting.The jacks use horizontal operating climbing pins for safe, positive contact. These jacks feature easy, automatic operation for raising and lowering loads and a speedy dis engagement system that lets the lifting unit drop away. Kit includes holder brackets that also include shovel mounting provisions. Jack and brackets feature a powdercoated finish to provide long lasting durability. Jacks feature easy, automatic operation for raising and lowering loads and a speedy disengagement system that lets the lifting unit drop away when pressure is removed.