This Clifford safety id bracelet is made of polyester and features a snap-lock clasp. Adjusts to fits wrists 4 - 7 inches. Strap is hand washable. End of strap tucks inside bracelet. Any additional length of the strap should be inside touching the wrist - not hanging on the outside. Strap does not need to be cut. Engrave your contact information on the back side of the tag. Safety ID bracelets assist with uniting a lost child with her parents by providing emergency personnel with the parents phone number on the back of the tag.