6 Inches Heavy Duty Rubber Caster Wheels Anti-Skid Swivel Casters Wheels with 360 Degree for Set of 4 (2 with Brakes& 2 Without): Amazon.com: Industrial & Scientific
8 in. Cushioned Rubber Rigid Caster
125x30 mm wheel with stainless steel support for trolleys, stretchers and beds
Heavy-Duty 14-Inch Rubber-on-Cast-Iron Wheel | Apollo Caster
6x2 Hard Rubber Caster, Load Capacity: 100-500kg
8" High Capacity Rubber Wheel - Ball Bearing - Caster City
Antique Bar Cart Rubber Caster Wheels — Iron Anarchy
5" Inch Medium Duty Caster Wheel 176 pounds Swivel Rubber Top Plate – VXB Ball Bearings
2 Inch Caster Wheel Brake Locking And Rubber Wheels, Heavy Duty Svel Plate Caster For Trolley Furniture, Workbench And Furniture, Support 600 L | Fruugo IT