1. Anti-lost rope for children/the old.
2. Double wrist, adjustable width for children and adult.
3. Key lock function. You can lock the kid wrist with the key on the adult wrist.
4. Built-in steel material for the rope, the rope is durable and not easy to be cut.
5. 360°rotation, you can let your kids go ahead and never mind their losing.
6. Comfortable, breathable and wrist.
7. Reflective rope, it can be seen far away 20m in the evening.