These specially designed heavy duty castor wheels with brakes can be used with various serveredge cabinets. They can be used with serveredge wall mount cabinets allowing them to be used a floor standing cabinets when required. Has been designed for very installation with use of just 4 screws (included with the product) and a screw driver. The castor wheels can also be used as a replacement for any of the other compatible serveredge cabinets as well.