Poly on Cast Iron Swivel Caster Set with Ball Bearings 2 Brakes_20S520-PUB-2-TLB-2 (Set of 4)

Listing is for a set of four (4) service caster series #20 swivel casters, two (2) with top locking brakes, with 5" diameter by 2" wide polyurethane on cast iron wheel and maintenance free precision ball wheel bearings capable of supporting a total weight of 1,800 lbs. (450 lbs./caster).