4pc - Storage Rack Caster Wheels (Adapts to Boltless Self Locking Shelving Racks) (3'' (500 Max Total Capacity))

*Installs on your existing storage rack. After installing these wheels, your shelf can easily roll and no longer has to be stationary.

*These wheels adapt to storage racks that have boltless self locking shelving systems

*Wheel Material: PU (Polyurethane). Locking wheels with ball bearings

*Includes 4 caster wheels and hardware

*500 lb. Max Total Capacity