Durable Material: This bike hook is made of high-quality metal iron. The material is not easy to deform, strong and durable, corrosion resistant, and not prone to breaking. The surface has an anti-rust coating that helps prevent rust, ensuring reliable performance. High Stability: This bike hook easily fits into the fixed pin and flexible connector of the trailer. With a low center of gravity, the trailer remains stable and is less likely to shake or tip over. Even if the bike falls, the trailer stays upright. Flexible and Safe: This bicycle hook offers high maneuverability, allowing safe navigation on winding roads. It enables quick and flexible response to unexpected obstacles. Easy to Install: The bicycle tow bar hook can be easily connected or disconnected from the rear wheel of the bike. First, use the nut to attach the trailer tow bar to the bicycle, then insert the trailer hook.