This medium duty jacking castor with a 160mm nylon wheel can lift loads an additional 76mm in vertical height. With a side mounted attachment plate jacking castors can be used on a variety of equipment and machinery that require vertical movement as well as horizontal. The jacking operation is achieved by a hexagonal spanner at the top of the jacking unit. JA 160mm Medium Duty Jacking Castor White Nylon Wheel 200kg Load