UNIVERSAL FIT FOR SIMPLE REPLACEMENT : Unlike any other office chair wheels available out there, our premium replacement office chair casters feature a new stem design, that makes replacing old casters a breeze. Simply and effortlessly, change your old casters in one, single motion and get ready to roll. Designed to fit all standard office chairs, this caster wheels is here to make your life easy.KEEP YOUR FLOORS IMMACULATE: You can now throw your old, plastic office chair mats in the garbage and get ready for some serious, smooth and quiet rolling across the floor. With an almost velvety feel, these unique office casters can safely glide on your expensive hardwood flooring or tile, vinyl, carpet and any type of floor with unparalleled ease, without causing the least scratch or noise and keeping your floors immaculate. (Not recommended for thick/tall carpets)GET OFFICE WHEELS WITH STYLE : These replacement casters are no ordinary furniture parts. They are unique pieces of striking beauty that can instantly elevate the style of any room theyre in. Upgrade your home or office chairs and transform your dcor by adding a touch of cool luxury.Delivery Quantity: 1pc,Size: 3 inchesColour: BlackKind tips1. Package content: only the above package content, excluding other products.2. The size is measured manually, please allow 1-2 cm measurement error.3. Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.