Our fixed trolley casters are widely used, Suitable for furniture, tool boxes, flight cases, trolleys, etc. Perfect for moving furniture, small equipment. and improve work efficiency. Selected quality plastic lightweight wheels, high quality, wear-resistant and non-slip, light and easy to push, dust-proof and smooth, durable. They roll smoothly on laminate floors as well as carpet. They greatly reduce noise. Single-axis directional wheel, strong grip, can effectively reduce noise, quiet and compact, does not wear the floor. Metal dust cover design, waterproof and rust-proof, not easy to oxidize, environmentally friendly electroplating, thick and durable, They have significantly reduced noise, longer service life. Product Description Product Features: High hardness, relatively wear-resistant, better load-bearing. The design is simple, elegant and beautiful, easy to use and easy to operate. Small size, quiet, no damage to the floor. Use of products: Attach the surface of the metal plate of the directional wheel to the bottom of the furniture to be installed and check that the connecting piece is fixed. Insert the screw into the mounting hole, tighten the directional wheel until there is no gap, so as not to loosen. Product details: Material: plastic + iron + stainless steel screws Size: 2.3cm diameter wheels 4*1.5cm metal plate Package: 12 small plastic castersscrews not included