This nylon and polyester Autism bracelet comes with a snap-lock clasp that keeps the bracelet secure on an active child-s wrist. It adjusts 4 - 6 inches, with the extra length tucking under the inside of the strap touching the wrist. Features an engravable medical ID tag which can be engraved on the back with additional Autism safety instructions. Our Autism bracelets can be the difference in a life-threatening situation and for regular daily safety. If you choose engraving for the back we will engrave the words SEE OTHER SIDE on front.