Feature:【Good Safety Performance】This bicycle trailer head is equipped with a D-type connecting pin, which is difficult to open. Even if they are installed, they will not fall off easily. So as to ensure safety while riding. The hook tractor is compatible with most bicycles, shopping carts, children's vehicles, trailers, etc.【Universal Coupling Adapter】The package contains 1 trailer head, the size is 20*2.8cm. The diameter of the shaft connection hole: 1.1 cm. Substrate length: 5.5 cm. The diameter of the hole in the hook connected to the trailer: 0.6 cm. The installation diameter of the tightening shaft nut: 2.2 cm. Universal coupling adapter, with spring tow bar connection, used for bicycles and children's vehicles.【High-quality Metal Mat.
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