The Shepherd Hardware 4 inch, rubber wheel, swivel plate caster, with side brake, 225 LB load capacity, general duty, soft rubber Wheels give mobility to heavy loads on smooth hard surface & finished concrete floors where quiet movement & floor protection are major considerations, bulk.

 4 inch diameter black soft rubber wheel with ball bearing swivel, side brake and plate mount
4-1/8 inch x 5 inch plate
225-lb load capacity
Soft rubber wheels for quiet operation over smooth, hard surfaces
A great choice when quiet mobility and floor protection are major considerations