Say goodbye to squeaky plastic wheels! All office and computer chairs are equipped with cheap black plastic wheels by manufacturers. Plastic wheels are noisy, easy to break, and will scratch the floor. Our Mute Universal Wheels are designed to dampen noise and squeaks. Each wheel can hold up to 110 pounds without scratching the floor. Available In two sizes (2.5" & 3") For almost any type of chair and furniture. Main Features[Protect Your Floor]Unlike plastic casters, these high-quality soft polyurethane wheels cause No damage to any type of floor. These wheels will last longer than the average office chair wheels. [Perfectly Smooth and Quiet Turning]Two precision bearings and a wheel cover made of soft polyurethane ensure that the wheels roll quickly and quietly on any surface - without any noise. You can also change the direction of movement of the chair effortlessly, and not get stuck during use. [Easy Installation]Quick and easy to install. No tools are needed. Simply pull out the old wheels and replace them with new universal wheels. It only takes a few minutes. [Reliable Heavy Duty Design]Using roller skating technology, heavy rods and solid steel frames, It can withstand loads up to 250kg/551 lbs with 5 wheels. Each 2.5" wheel can support a weight of 40kg/88 lbs, and each 3" wheel can support a weight of 50kg/110 lbs. [Versatile]These all-purpose wheels are safe Use on wood, hardwood, tile, carpet, laminate, vinyl, bamboo, and other floors. There is no more scraping noise. No scratches or marks. SpecificationsMaterial: PURproduct Size: 10mm(2.5"),11mm(3")Each Support Wheel: 40kg(10mm), 50kg(11mm)Package Included: 1x5pcs Mute 10/11mm Universal CastersNoteDue to manual measurement, please allow slight measurement deviation. Due to different display and lighting effects, the actual color of the item may be slightly different from the color displayed on the pictures.