Retractable tow strap: This strap allows you to pull your child while they ride their own bike, steering and balancing independently. The strap is flexible and can be retracted or extended during use, making it easy to ride over bumps or puddles.SAFE AND CONVENIENT: The bike tow strap features a solid round rubber band end with a double hook that securely attaches behind the seat post and under the seat, providing a durable and convenient connection.EASY PULLING: This bike tow strap helps parents pull children to the top of hills, offering a simple towing solution for parent-child rides.Relaxing and Stable Towing: The tow strap maintains a maximum distance of 2.50 meters between bikes, ensuring smooth and stable towing. Once the elastic band is engaged, both rider and child can enjoy a comfortable experience.Lightweight and practical: The bike tow strap is lightweight and easy to carry, weighing only 280 grams. It can be conveniently stored in a large bag or backpack. Dimensions: 15 x 10 x 7 cm.