4 Inch Caster With Brake

Do you need some casters for a Z-Rack or H-Rack? With these particular casters you have the option of locking them into place with a brake. So if you need to move your rack you can but if you want it to stay put it can do that as well! $5.95 is the price of one caster NOT four! You only need two brake casters to keep a rack stationary.