KEY LOCK DESIGN, ADJUSTABLE, wrist band COMFORTABLE, breathable sponge padding care for your baby's tender skin SECURE & DURABLE, MORE FREEDOM, the extendable wire stretches and offers more freedom and space while being able to ensure kids' safety. FLEXIBLE & EASY TO USE, just connect the safety anti lost wrist link to adult's and kids' hands, 360 degree swivel clip provide flexible and safe kid’s activities These toddler belts are connected by a 360-degree swivel connector that offers more possibilities for your baby's activities. Children's locks can prevent some troubles caused by children's self-opening in crowds. With an adjustable wrist strap for adults and children, you can connect your anti-lost belt to your backpack, shopping cart or stroller. Suitable for use in parks, plazas, supermarkets, playgrounds and crowded places.