4" x 1-1/4" Poly-Pro Wheel Swivel Caster Stainless Steel - 300 lbs. capacity4" x 1 1 4" Poly Pro Wheel Stainless Steel Caster The poly pro wheel is one of our caster staples, providing plenty of durability with a firm tread. The polyurethane tread protects surfaces, and the annular bearings roll very smoothly. These wheels work best for indoor applications; for outdoor use, please take a look at our Polymadic wheel casters with UV resistant materials. Tread: Polyurethane, Non Marking, Mechanically Locked To Core Core:
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