Heavy Duty: The refrigerator appliance rollers are made of iron, nylon, and silicone material, providing high hardness, strength, and wear resistance. Easy to use, does not require complicated installation steps or tools, and can be installed and placed under the appliance for use. 300Kg Load & Easy To Install: -duty appliance rollers have a load-bearing capacity of 300kg and are widely used in washing machines, refrigerators, closets, cabinets, or other heavy furniture. Detachable: When the furniture washing machine is not in use, it can be stored in any corner of the room, easy to disassemble and save storage space. Equipped with 24 upgraded small wheels for smoother movement, making it easier to clean corner places and move heavy furniture and household appliances.