4 Piece Polyurethane Top Plate Caster Set with 2 Rigids

The listing is for a set of four (4) service caster series #20 casters, two (2) swivel, and two (2) rigid casters, with 5" diameter by 1-1/4" wide black polyurethane wheels capable of supporting a total weight of 1,400 lbs. (350 lbs./caster).