3" Spring Loaded Caster for Brake Gate, Shock Absorbing Nylon Swivel 110 Lb Load Capacity Diameter 75mm Suitable Garden Timber Gates Patio Fencing

Shock Absorption: The casters are made of nylon material and metal structure, durable, easy to move and roll, making it easy to open and close the door. Heavy-duty Casters: The wheels have a maximum load capacity of 110lbs and can also withstand the oxidation of chemicals and solvents. Spring-loaded Design: By automatically adjusting the height on uneven ground while eliminating door sag, allowing the door to open and close freely. Simple Connection: Heavy-duty universal mounting plate with 4 holes that can be easily connected to wooden gates or horizontal or vertical rails along tubular agricultural gates. Easy to Use: With the aid of the brake, you can fix the gate anywhere, secure to use and easy to install.