Material: This metal wheel is made of strong, heavy-duty steel that is resistant to corrosion and rust and can be used outdoors for a long time. It has a strong load-bearing capacity. Features: The metal wheel has good stability, smooth sliding, strong and durable. Easy installation: It can be easily attached with tools to fence/metal/wooden doors. Note: After installation, open and close the gate to ensure smooth running of the gate casters. Scope of application: The metal wheel is suitable for all kinds of gates, and can smoothly slide over grass, gravel, concrete surfaces and uneven ground. Widely used in residential, farm, factory, company or commercial gates. Date First Available July 11, 2024