Extendable Bicycle Belt: The bicycle towing system allows you to tow your child on their own bike while you steer and balance your own bike. The adjustable strap shortens or lengthens while you cycle, allowing you to handle all terrain and water on the way. 【Comfortable and Stable Towing】: This bicycle tow bar controls the distance between two bicycles up to a maximum of 2.50 m, providing a comfortable and stable grip. When the elastic band is extended, with a load capacity of 89 kg, you and your child can enjoy comfortable towing. 【Lightweight and Safe】: This bicycle tow strap has a sturdy rubber ring at one end with double hooks for attaching behind the seat post and under the saddle, making it easy and safe to use. Easy to carry: The bicycle harness is very light and compact, so you can take it with you everywhere. It fits in a large bag or backpack and weighs only 280 g. Dimensions: 15 x 10 x 7 cm. 【Easy to Tow】: With this bicycle coupling, you can use the rope to tow your child to the top of the mountain, providing an easy towing solution for parents.