Vestil Cst-E6-4X2Pup-R Polyurethane Rigid Caster 4″ Diameter X 2″ Width 551 Lb. Capacity, Orange/Silver

Polyurethane is ideal for most environments. It is resistant to a variety of chemicals, and produces an easy roll for ergonomic applications. Polyurethane also provides good floor preservation and works effectively in both indoor and outdoor environments. The additional thread guard protects the wheel bearings to increase longevity and overall performance.