Thermoplastic Rubber Swivel Top Plate Caster Set

Listing is for a set of four (4) Service Caster Series #20 stainless steel casters, two (2) swivel and two (2) rigid casters, with 5" diameter by 1-1/4" wide gray thermoplastic rubber wheels capable of supporting a total weight of 1,200 lbs. (300 lbs./caster).