1. Key lock design: Unlike older kids belts that use hook and loop closures that are easy for children or others to open, our toddler belts come with a small key on the parent's wristband. If you want to open the child's wristband, you must use the key on the parent's wristband, which is safer to use. 2. Adjustable Design: The rope is not only retractable, but also the size of the bracelet can be adjusted freely, which is suitable for most children. 3. Comfortable design: There is cushion cotton inside the bracelet, which is soft and comfortable to wear. The connection between the rope and the bracelet can be rotated 360 degrees to prevent the rope from getting tangled. 4. Anti-lost: Our children's leash allows children to do activities independently, while keeping them within the sight of their parents, especially in crowded outdoor places, to prevent children from getting lost. 5. High quality: The rope is made of steel wire + PU, which is sturdy and durable, and not easy to cut off. The connection between the bracelet and the rope is connected by a metal joint, which is not easy to separate and can be used for a long time.