Heavy Duty Red Polyurethane Swivel Caster Wheel

Wheel material: Red polyurethane bonded to a cast iron or steel core Caster type: 360° swivel Wheel sizes: 4", 5", 6", or 8" diameter Load capacity: 300–2,500 lb (135–1,135 kg) per caster, depending on the size and model Bearing: Roller or precision ball bearing Mounting: Top plate Frame: Heavy-duty zinc-plated or forged steel