This Vestil LJ-17-SS screw levelling lifts levels, and stabilises portable devices at a required height. Made of stainless steel for strength and corrosion resistance. It has a 17" screw path and lifts from 4.5" to 21" in height. It has an 8.5" long handle that folds down for safety when not in use. The top and bottom flanges are 3.2 inches in diameter, 3.2 mm thick and have six mounting holes with a diameter of 0.6 cm. The jack has a rotating base of 9.5 cm in diameter with a non-slip rubber pad on the bottom for a secure grip. This levelling jack has a 2.3 kg. Lifting capacity and 4.5 kg holding capacity. The lifting speed is 1/4 inch per crank rotation. Vestil manufactures materials for handling equipment including lifting and trolleys, boom and gantry cranes, chargers and storage solutions. Founded in 1968, the company is headquartered in Angola, IN.