Superior means of admission control. Brightly colored waterproof wristbands are made from DuPont Tyvek. Each one is perforated & has a one time use, peel off adhesive liner. These bands are perfect for club admission, conventions, parties, bars, crowd control, birthday parties, legal drinking age, festivals, safety & security & school trips. Each band is sequentially numbered. Made from materials that are safer for children. Wristband Type: Security / Crowd Management; Color(s): Yellow; Wristbands Depicted Text: Sequentially Numbered; Material(s): Tyvek Band / Adhesive Closure.