HEAVY DUTY 1000LB CAPACITY:Designed for large metal tube or solid wooden gates weighing up to 1000 lbs. Perfect for single driveways or farm gates 4-6 ft wide (1.2-1.8m) . Unlike standard casters that bend, our heavy-duty bracket and rubber wheel provide rock-solid support to prevent gate dragging and misalignment. | 360° ROTATION & ONE-TOUCH BRAKE:The 360-degree swivel design allows the wheel to automatically align with your gate’s movement on grass, gravel, or concrete. Equipped with a high-sensitivity foot brake that locks the wheel instantly, keeping your gate securely parked even on windy days or slopes. | SHOCK ABSORBING SPRING SYSTEM:No more uneven ground troubles! The built-in heavy-duty spring allows the wheel to retract and extend up/down automatically. This protects your gate from bending when closing on bumpy surfaces and ensures the wheel always stays in contact with the ground for silent operation. | WEAR-RESISTANT & ANTI-RUST:Constructed from high-elasticity rubber (not cheap plastic) with excellent wear resistance. The bracket features a corrosion-resistant black coating to withstand rain, snow, and sun exposure. Long-lasting performance without cracking or rusting.