4 Piece Polyurethane Caster Set with 2 Brakes

Listing is for a set of four (4) service caster series #30 casters, two (2) swivel casters with side lock brakes & bolt on swivel locks and two (2) rigid casters, with 5" diameter by 2" wide polyurethane tread set on a polyolefin core wheel and maintenance free precision ball wheel bearings capable of supporting a total weight of 3,000 lbs. (750 lbs./caster).