Durable: The connecting rope is made of stainless steel and wrapped with plastic, never worry this safety harness will be cut by knife. It is linked to the wrist straps with metal connectors that can freely rotate 360 degreesSize:All you need to do is connect the wristbands to adults and kids hands respectively.The extendable wire stretches up to 2.5 meters,the wrist strap diameter size of kids hand side (the smaller side) can be adjusted up to 7.5 cm.offering more freedom and space while being able to ensure kids safetySoft and ComfortableThe wristband is made of high-quality breathable cotton, double-layer and extra padded wristband to ensure absolute safety, softness and comfort, and protect the wrist from scratches and sweat.Use occasions:perfect for anti lost in supermarkets, parks, shopping mall, subway, playground, street airports and any other crowded place, It also can be connected to backpacks and baby carriages, convenientAnti-lost: Only used to prevent children from losing when they go out, but do not prevent children from falling down and cant be used as a walking training equipment. Suggest for children aged 4 and over.