Upgrade your mobility with this set of 4 polyurethane caster wheels, each with a 280 lbs weight capacity, offering a total load-bearing capacity of 1120 lbs. The 5-inch wheel diameter and 1-1/4-inch tread width ensure smooth and easy maneuverability, while the 4-1/8 inch swivel radius provides excellent handling. Designed with floor protection in mind, these durable wheels are safe for all floor types, including hardwood, tile, carpet, and concrete, preventing scratches and preserving your surfaces. Ideal for various applications such as office chairs, shopping carts, and beds, these casters enhance the mobility and functionality of your equipment. Equipped with high-quality bearings, they deliver smooth and quiet operation, allowing your equipment to roll effortlessly without disturbing noise.