Get smooth, quiet rolling and full swivel action all while protecting your floors. Eliminate the need for big plastic floor mats over your beautiful floors. Our safe rubber casters are the office wheels of the future. Perfect as a set of replacement caster wheels for home or office chairs that have hard, noisy, rough plastic wheels. Black and Gray to match and blend with any decor. Designed that a set of 5 will hold a maximum of 330 lbs total weight chair and rider. Perfect for home or office use, our wheels carry a 5-year limited warranty.