4 in. Polyurethane Heavy Duty Swivel Caster – Item 96437
With a longer service life than rubber casters, these polyurethane wheels are ideal for maintaining smooth maneuverability for utility or service carts. These quiet and non-marring swivel casters also feature a smooth tread, sealed swivel bearing and a cast iron hub for optimal durability. The casters are sold individually and support 176 Lbs. each.