ANTI-LOST: Anti-lost wrist link designed with a lock and its key designed in the parent's handle to prevent opening by accident. Keep toddlers close to parents and give them independence during indoor or outdoor activities. The shrinking chain can extend up to 2m (6.6ft). Using this toddler leash, parents will no longer worry about their children running off. Adjustable Shoulder Straps: The shoulder straps are freely adjustable. They can be adjusted according to children’s need and can greatly ease the pressure on the shoulders. Please note that each child adapts differently and there may be some loosening and tightening errors. Soft & Comfortable: Soft double layers of hook and loop for kids’ hands, not easy to take off by themselves. The size of the wrist strap can be adjusted according to your need, the soft sponge pad in the wrist strap makes it comfortable to wear for both adults and kids. Bracelet is made of cotton, it is breathable and anti-friction. Excellent Quality: The anti lost wrist link is made up of stainless steel wire which is safe to human body and is difficult to be cut off by knife. Note: Firstly, parents should keep a close distance with their children after wearing them, which can protect their safety. Secondly, don’t pull hard to prevent falling. Thirdly, don’t buckle your wrist too tightly to avoid discomfort. Recommended for children aged 2-4 years.