Durable Material This bike hook is made of high quality metal iron.The material is not easy to deform, strong and durable, corrosion resistant, not easy to break, and the surface has an anti-rust coating that is not easy to rust, so you can rest assured when you hold it in your hand..High stability This bike hook is a metal hook that easily fits into the fixed pin and flexible connector of the trailer.Due to the low center of gravity, the trailer is not easy to shake and tip.Even if your bike falls, the bike trailer will remain upright..Flexible and safe This type of bicycle hook has a high degree of maneuverability: the system allows you to drive on winding roads that do not affect safety, so that you can react quickly and flexibly to sudden dangers..Easy to install It is easy to disconnect or reconnect the bicycle tow bar hook to the rear wheel of the bicycle.First use the nut to connect the tow bar of the bicycle trailer to the bicycle, then insert the trailer hook..If you have any questions please contact us promptly