The coupling bike trailer is made of high quality material and the surface is coated with black enamel, which is strong and strong, not easy to be decompatible withmed, corrosion-resistant and not easy to be damaged.Easy to Install: Our universal bicycle trailer hitch is easy to install, no additional tools are required. First connect the towbar of the bicycle trailer to the bicycle with bolts and nuts. Then insert the trailer attachment, finally place it on the pin, and the connection is complete, which brings you a lot of convenience.Complete safety: Compared to conventional bicycle towbars, our bicycle towbars have extra ribs at the front and rear. Every bicycle trailer is equipped with a connecting pin that can hardly be opened. Due to the low center of gravity, the trailer is not easy to shake and tip over - it can offer maximum safety Wide use: bicycle towbars compatible with bicycle trailers are very suitable compatible with family use, can pull strollers, bicycles and strollers. Cycling in the park, bringing children and pets with you is very convenient, easy and safe.colour:BlackMaterial:MetalPackage Contents:1 x towing hook with buckle1 x trailer towing head with buckleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.