Polyurethane Set with Ball Bearing 2 Swivel Lock and 2 Rigid SCC

The listing is for a set of four (4) Service Caster series #35 casters, two (2) swivel casters with bolt-on swivel locks, and two (2) rigid casters, with 8" diameter by 2" wide polyurethane on polyolefin wheels and maintenance free precision ball wheel bearings. Capable of supporting a total weight of 4,000 lbs. (1,000 lbs./caster).