Keep Kids Nearby and Safety - Thanks to the sturdy wrist leash that can provide strong protection, the little baby can fully explore freely in outdoor activities. You wont worry about kids lossing and wandering in crowded places, such as supermarkets,parks, shopping centers, streets, subways, playgrounds, scenic spots, train stations, elevators and vegetable markets, etc. 2. Cute Design Backpack- The toddler Backpack is lightweight and soft touch, will not burden your kids. And, the anti-lost rope backpack adopts very cute dinosaur patterns, which is very popular with babies. Babies wont resist put it on. And the durableshoulder straps can be adjusted at will to find the most suitable size for your baby. One size fits most toddler from 1-5 years old. 3. Detachable Baby Reins - The safety leash and backpack are detachable. So, it can either be a child safety backpack or be an anti lost wrist link. Can fully detach the reins from the harness, and attach the reins to an additional cuff, then you geta safety wristband. Easy and quick to put on and dont take up much room in a bag when not in use. 4. Anti-lost Wristband with Lock - The bungee Straps is made of cut-resistant stainless steel. The surface contains PU material, unless special tools are used, they will not be cut. The baby safety wristband is made of super soft breathable foam pad andVelcro angle straps, which can avoid scratches and sweat on the wrist, and is breathable and resistant to friction. Child side of our wristband comes with lock so he cant unfasten it. 5. Great Travel Helper - The capacity of the backpack can fit diapers, snacks, wipes, small toys, etc. You can cultivate kids awareness of carrying their own things. But we do not recommend putting too many items in, as this will bring too much burdento the developing kids.