RETRACTABLE BIKE STRAP: With this bike towing system, you can pull your child on their own bike while continuing to control and balance their own bike. The strap is adaptable and can be made shorter or longer while driving to adapt to any terrain and water on the road. Comfortable and Stable Towing: The bicycle tow strap controls the distance between two bikes to a maximum of 2.50 m, providing comfortable and stable traction. With a load capacity of 550 lb, once the elastic band is stretched, you and your children can enjoy a comfortable towing experience. Easy and Safe: This bike tow strap features a sturdy round rubber band end with a double hook that attaches behind the seat post and under the seat, making it easy and safe to use. Easy to CarryThe bike tow strap is very lightweight and compact, so you can take it anywhere. It fits in a large bag or backpack and weighs only 280 g. Size: 15 x 10 x 7 cm. Easy Pulling: With this bike tow strap, you can pull your children to the top of the hill with ropes, providing an easy towing solution for parent-child rides.