Features:_x000D_1.Replacement coupler for child trailers and most bicycles_x000D_2.It can be used as a convenient and safe hook to connect the bicycle trailer to the rear axle of the bicycle._x000D_3.A heavy-duty steel, welded boom with an angle of approximately 45 degrees, suitable for many types of bicycle trailers. _x000D_4.Lightweight and compact size design, easy to carry and storage._x000D_5.amily fun: With an additional trailer coupler attachment, both Mom and Dad39;s bikes can be outfitted to tow the kids trailer, your kids will enjoy the bike ride. A bonus, when your kids gets tired from riding, you can strap him next to your bike _x000D_ _x000D_Notice:_x000D_Please allow 1-3cm deviation due to manual measurement_x000D_Actual color may be slightly different from the image due to different monitor and light effect_x000D_Description:_x000D_Material:Metal_x000D_Size:as shownPackage List:_x000D_1x Bike Bicycle Trailer Coupler with Buckle