Vestil Cst-Ve-4X2Gfn-Swtb Glass Filled Nylon Swivel With Total Brake Caster 4″ Diameter X 2″ Width 800 Lb. Capacity, Black

Made of high-tech proprietary glass filled nylon. Provides better impact resistance than standard glass filled nylon. Does not absorb moisture like phenolic, and offers better floor preservation than steel or cast iron. Resists most chemicals, solvents, gases, acids and steam cleaning. Wheel core material is glass filled nylon.