With vertical and horizontal holes, the bike trailer for kids is designed to fit any bike trailer configuration. It's portable design makes it easy to use and store. EASY TO INSTALL - This baby bike trailer is quick and easy to install for your dog or kid, making it more convenient when you're out and saves your time and energy. FAMILY FUN - The bicycle trailer hitchr enables easy connection between your bike and trailer, ensuring a safe and comfortable ride for your little , pets, and cargo during family travels. Color: Black Material:Metal Package Contents: 1 x Bike Trailer Hitch Connector Only the above package content, other products are not included. Note: Light reflection 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.