Vestil Cst-Py-4X2Pua-R Polyurethane Rigid Caster 4″ Diameter X 2″ Width 440 Lb. Capacity, Yellow/Gray

Polyurethane is ideal for most environments. Resistant to a variety of chemicals, and produces an easy roll for ergonomic applications. It also provides good floor preservation and works effectively in both indoor and outdoor environments.