Poly on Cast Iron Set 2 Brakes/Swivel Locks and 2 Rigid SCC

The listing is for a set of four (4) Service Caster series #35 casters, two (2) swivel casters with side lock brakes & bolt swivel locks, and two (2) rigid casters, with 8" diameter by 2" wide polyurethane on cast iron wheels capable of supporting a total weight of 5,000 lbs. (1,250 lbs./caster).