Thank you for viewing! This is an adjustable "Velcro" chest belt. Chest belts are used to secure the shoulder straps of a backpack in front of the chest, preventing them from slipping. This is made for young children who cannot yet use buckles. Velcro is safe! And they can take it on and off themselves with a "peel-off" sound ♡ Recently, I've heard that some kindergartens are specifying Velcro-type chest belts. My child went to daycare, so they specified a "backpack with a chest belt" for field trips. Are commercially available backpacks, even for babies, usually the buckle type?? I was worried about pinching fingers, so I used this Velcro type until my child was about 4 years old. Thanks to that, many children are using it. You can adjust the size to fit the belt width of your backpack. The recommended age is up to 4 or 5 years old, when you might be concerned about using buckles(^^♪ I also make buckle-type chest belts once children are able to use them. Anonymous delivery, same-day shipping, shipping included, shipped within 24 hours, immediate purchase price, immediate purchase OK. Immediate purchase is welcome, no comments needed, purchase OK, new, handmade, travel, field trip, outdoor, backpack, rucksack, knapsack, school bag, handmade