Poly on Cast Iron Caster with Roller Bearing and Swivel Lock (Set of 4)

Listing is for a set of four (4) service caster series #30 swivel casters with 8" diameter by 2" wide green polyurethane on cast iron wheels with bolt on swivel locks capable of supporting a total weight of 5,000 lbs. (1,250 lbs. per caster).