Zicac 2 in 1 Anti-lost Preschool Backpack With Safety Harness for 3-6 Years Old Kids Material:Polyester Detachable tether strap with strong metal hook, Length:113cm/44.49'' Keep kids close and safe in crowds or during family outings. Help the baby learn to walk; and it can also be used as a small backpack Holds all toddler necessities -Diapers, wipes, pacifiers, juice cups, toys, cuddle objects, and more can be easily carried in the bag The strap and the safety buckle are adjustable for growing child; sliding straps maintain perfect positioning; comfortable shoulder straps for delicate skin One size fits most kids, a cute design---Butterfly shape backpack that your child will love to take