The Kendall Howard Portable Rack Locking Caster kit is designed to work with Mobile/Modular/Portable Racks. When a rack needs to be mobile, use these casters as they provide both strength and stability.
The sturdy design and bearing driven wheels have an amazing 200 pound weight capacity per wheel. The non-marking polyurethane wheels are designed for any environment. All 4 casters lock to keep the rack in one place. When the rack needs to move, simply flip the brake and it's mobile again.