Gooble 8 Inch Pneumatic Tire Set of Air Rubber Tire Heavy Duty Anti-Skid Rubber Swivel Casters with 360 Degree Rotation Ball Bearing,for Carts, Dolly, Workbench, Trolley: Amazon.com: Industrial & Scientific
4pcs 8" Rubber Pneumatic Air Tire Wheel 2 Rigid+2 Swivel Cart Caster Heavy Duty - Walmart.com