Vestil trailer stabilising jacks are designed to prevent up-ending of semi-trailers, when not connected to a tractor, during loading and unloading operations. They can also be used for levelling the trailers, parked on a sloped surface, thereby preventing the landing gear from sinking. These ratchet beam jacks are further equipped with a flush-type zerk fitting for lubricating ACME screws and come coated with a powder finish for increased toughness. Choose from a wide range of these trailer stabilising jacks available in fully pneumatic, hard rubber and solid foam wheel options on Raptor Supplies.