Built-in springs prevent the tow rope from dragging on the ground or approaching the wheels while riding, ensuring safety while towing. The tow rope can be secured under the seat and attached to your child's bike to begin towing. Combining a durable and lightweight design, it can withstand tension of up to 300 pounds, providing reliable strength and ease of use. Suitable not only for bicycles, but also for e-bikes, mountain bikes, and road bikes. Other usage scenarios include skiing, kayaking, and stand-up paddleboarding. We sincerely hope that with our bike trailer tool, you can ride further with your children, see more beautiful scenery, and make your children more active and stronger. This innovatively designed bike tow rope is an ideal accessory for cycling enthusiasts, especially suitable for sharing the fun of riding with children. Built-in springs ensure safe traction and avoid the dangers caused by slack rope. Easy installation and storage, along with excellent durability and versatility, make it a great choice for outdoor activities. Features: Convenient Towing: The tow rope quickly attaches under the seat and attaches to your child's bike to begin towing. When not in use, simply release the rope and it will automatically retract into the towing device. Premium Materials: The nylon rope construction combines durability with a lightweight design and can withstand tension of up to 300 pounds, providing reliable strength and easy use and storage. Wide Application: Not only suitable for bicycles, but also for electric bikes, mountain bikes, and road bikes. More usage scenarios such as skiing, kayaking, and stand-up paddleboarding are waiting for you to explore and share. New Parent-Child Riding Experience: We sincerely hope that with our bike trailer tool, you can ride further with your children, see more beautiful scenery, make your children more lively and vigorous, and share more fun together.