Polyurethane Swivel Threaded Stem Caster Set of 4 With3 X 1.25 Blue Wheels and 1

Supports a total weight of 1,000lbs (250lbs/per caster). The zinc plated finish provides durability under any condition, while the non-marking, non-marring polyurethane wheels perform especially well on hard surfaces such as concrete, tile, and wood.