Waxman Casters TPR Rubber Caster Wheel &ndash; Gray 5-Inch Swiveling Top Plate &ndash; Non-Marking, Safe on Surfaces &ndash; For Multi-Purpose Use QUALITY CONSTRUCTION  With a wheel thats made of gray, non-marking rubber and a heavy-duty metal frame plate, this caster is durable and resilient. The swiveling plate has a total load capacity of 350 pounds and can also withstand exposure to chemicals and solvents. MULTIPURPOSE  The TPR rubber caster is versatile and can be utilized not only in professional environments, but also for home furniture. This multipurpose wheel can be installed on trolleys, TV stands, desks, carts, tables, toolboxes, chairs, bedframes, stools, dressers, and more. FOR INSTITUTIONAL USE  The all-around utility of these casters makes them suitable for many different establishments, but they are specifically engineered for use in pharmaceutical laboratories, hospitals, food service, and other institutional settings. They can be installed on various units, making life easier for all associates and staff members. SAFE ON MOST SURFACES  Scrape-proof and scratch resistant, this caster is guaranteed safe to use on a variety of surfaces. Compared to polyurethane wheels, you can be rest assured that this caster's rubberized wheels won't damage your carpets, concrete, tiles, or wooden surfaces. STURDY AND SMOOTH GLIDE  In comparison to polyurethane wheels, this caster's rubberized wheels provide a smoother and softer ride. They allow steady maneuvering when pushing and pulling equipment and also boast a swiveling plate that makes moving through hallways much easier and more efficient.