8 Inch Thermoplastic Rubber Caster Set with 2 Brakes/Swivel Lock 2 Rigid SCC

The 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 an 8" diameter by 2" wide thermoplastic rubber flat tread on polyolefin core wheel, maintenance-free precision ball wheel bearings capable of supporting a total weight of 2,400 lbs. (600 lbs./caster).