Double Anti-lost ProtectionUnlike ordinary anti-lost reins. Child puts on the butterfly back rein, the other end is grasped by the parents; The 4.9ft/1.5m wrist rein is connected to the wrists of the parents and the child, great for taking it out with your kids. 360 Rotation & Double-Layer BuckleThe child wrist strap is equipped with a 360-degree rotatable metal connector and double-Layer buckle design, provides increased security and more freedom, a must-have seat belt for taking your child out. Comfortable & Durable MaterialMade by cotton which is breathable, it makes kids and adult more comfortable and does not hurt the hands. Durable toddler wrist strap made of stainless steel wire and PU plastic for extra security, sturdy and not easy to break Adjustable DesignThe straps of the harness are adjustable, it always stay in the correct position and ensure your little one is comfortable. The wrist strap can be adjusted up to 0.46ft/14cm, suitable for children ages 1-6 years.