Protect Hardwood Floors: The 2-inch swivel caster is made of acrylic, wrapped with thick polyurethane wire. No need to worry about leaving any scratches on hardwood, laminate, tile, slate or all other hard floor surfaces. Say goodbye to the troubles of carpet. 360-degree low-profile casters: extremely smooth rolling and strong anti-deformation ability under static load. The 2-inch casters use a 360-degree swivel plate for smooth and quiet rolling. Stylish transparent polyurethane casters: small wheels are suitable for furniture transportation, helping you to easily carry heavy objects. Transparent table wheels are suitable for furniture and walls of various styles. 4 casters, wide range of uses: suitable for small objects in kitchens, bathrooms, carpets, wooden shelves, plant stands, coffee tables, wardrobes, bookcases, cat beds and other places. 4 sets of furniture wheels can meet your DIY needs. They are easy to install with screws (screws are not included in this one)