Usage Tips:1.Simple Towing: This bike towing strap enables you to tow your kids to the top of the hill by using a few pipes and ropes, offering a simple towing option for parent-child rides. 2.Retractable Towing System: With this bike towing strap, you can easily tow your child up and down hills, while allowing them to keep steering and balancing their own bike. The strap is retractable, so you can adjust the length as needed and ride over bumps or puddles without any hassle. 3.Secure and Simple: This bike towing strap has a double hook that fits behind te seatpost and under the seat, providing a secure and simple way to use it. 4.Easy to Carry: The bike towing strap is very light and compact, so you can take it anywhere. It fits in a large pocket or backpack 5.Smooth and Comfortable Towing: This bike towing strap keeps the distance between two bicycles, ensuring a smooth and jitter-free traction. Once the elastic is stretched, you and your kids can enjoy a comfortable towing experience. Colour:Black Material:Plastic Package Contents: 1x Bicycle Tow Rope 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.