Anti-lost Rope with A Brace Key Lock Design: Sybil?s new design uses hook and loop closure which is not easy to be opened by children or others, our upgraded toddler leash comes 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, making it safer to use. Adjustable Design: Not only is the rope stretchable with the longest length of 1.5m/4.9ft, but also the size of the bracelet can be adjusted freely (up to 14cm), which is suitable for children of different stature. Comfortable Design: There is cushioning cotton inside the bracelet, which makes it soft and comfortable to wear. The connection between the rope and the bracelet can be rotated 360 degrees to prevent the rope from winding. Anti-lost: Our child leash allows children to do activities independently and at the same time keep them within the sight of parents, especially in crowded outdoor places, to prevent children from getting lost. There is a brace used on child to make it more comfortable to ware this product. High Quality: The rope is made of stainless steel, which is strong and durable, not easy to cut off, and the connection between the bracelet and the rope is connected by metal joints, not easy to separate, and can be used for a long time.