4" X 1-1/4" GRAY THERMO RUBBER SWIVEL CASTER SET OF 4 (NON MARKING) WHEEL - 800 LBS CAPACITY

Thermo Plastic Rubber Toolbox Swivel Caster Set of 4Gray non-marking rubber wheels for a quiet, smooth ride!CasterHQ's Thermo Plastic Rubber wheels are extremely high quality non-marking gray thermo-plastic engineered rubber tread bonded to an industrial Polyolefin (plastic) core that is used in many applications such as food service, hospitals, laboratories, and many institutional applications and industries. Thermo Plastic Wheels are also known as TPR Wheels, Thermo Wheels, and Thermo Plastic Rubber wheels. These wheels are softer than a standard polyurethane wheel you would normally use. With a 75 Shore A Durometer (Softness of Wheel); these are exclusivley made to roll over debris, gaps, cracks, obstacles with ease. The softer tire allows it to grip and roll-over obstacles opposed to harder wheels that will just push or get stuck while rolling.