These casters have black, 5' diameter rubber wheels, steel struts, are made for moveable shelving units. Comes in a four-pack with packet of screws.
Click a buying guide below for details:
Shelving Buying Guide - When shopping for free standing wire shelving, the first thing that you must consider is what type of environment you plan on using it in. Wire shelving is usually used for one of two applications - dry or wet storage.