STURDY AND ROBUST SMALL FURNITURE CASTERS – Set of 4. The small furniture casters are made of thickened, galvanized steel, a thick material with a high load-bearing capacity. Wear-resistant and durable. The wheels are made of nylon, wear-resistant, and have a good load-bearing capacity. The furniture casters are polished smoothly and burr-free. LIGHT SLIDING NOISE – The furniture casters have a quiet sliding noise and good damping effect. The nylon material of the wheels is sturdy and elastic, which reduces floor wear and leaves no marks on the floor. EASY INSTALLATION – The mini furniture casters are removable. Each caster set comes with matching screws. Simply determine the mounting position on the furniture and then attach the furniture casters with a screwdriver and screws. Installation is child's play. TWO MOUNTING OPTIONS – These universal spherical furniture casters have two different mounting options. You can mount them at the bottom or side, depending on the furniture