It could protect the away from twisting the wrist.Built in thick steel wire.It doesn't break easily. It doesn't hurt the skin.This is a great item for clever mom’s that want to introduce freedom while keeping their toddlers and safe during family activities.Using anti lost wrist link for toddlers the Anti-Lost Safety Wrist Straps gives parents peace of mind.The Anti-Lost Safety Wrist Straps is designed with parent's needs in mind. It ensures children’s safety while they are next to you, and lets them explore their surroundings. This harness baby leash strap is made with high quality, safe and comfortable materials to ensure children’s safety.It is made with 100% cotton, and the adjustable straps allows it to fit most wrists. It even has an anti-pinching and anti-pricking feature on this kid's Child wrist links. Keep toddlers close to you and at the same time give them independence during indoor or outdoor activities. Easy to use: All you need to do is connect the wristbands to adult’s and kids’ hands respectively. Soft & Comfortable: Kid leash bracelet soft double layers of hook and loop for kids’ hands, not easy to take off by themselves. The size of 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. Durable: The coiled cord is made of stainless steel and wrapped with plastic, so please never worry that it will be cut off by knife. It is linked to the wrist strap with metal connectors which can freely rotate 360 degrees. Attention: Only used to prevent children from getting lost. Please do not use it as a walking training device. After wearing the wrist link, caregivers should follow close behind their children to prevent them from running too fast and falling back because of the shrinking chain.