[360 Swivel Casters] A flexible change of direction. Mounting by simply screwing the connection plate For use indoors and outdoors. [High Quality ] Made from highly wear-resistant rubber wheels, durability, abrasion resistance, shock absorption, quiet operation, prevention of marks on the floor or floor tiles, suitable for sensitive floors such as as parquet, laminate or tile. [Durable] High contact area to prevent floor moisture and extend the service life of the furniture. Material: rubber + galvanized steel frame. Ideal for a wide variety of DIY uses to industrial applications, home, schools, shops, garage, carts and hospitals. [Load Capacity] Maximum load capacity of 80 kg per wheel. Safe for all types of floors and parquet. Rotating head with double ball bearings for 360 degree rotation for more comfortable and smoother wheel movement. Rubber wheels offer the elasticity of wheels combined with the toughness and durability of metal wheels. [Armage Used ]This caster wheel can be used for home furniture, bed and wheelchair, industrial and -rcher cart, flight case, instrument case, mobile workstation, garage, the workshop, the operation, even at home, move your toolbox, tool box, etc. Delivery quantity: 4 pieces of 3 inch universal wheels (screws not included) lucky meet