SICURIX Security Wristbands, Sequentially Numbered, 10" x 0.75", Blue, 100/Pack - Superior means of admission control. Brightly colored waterproof wristbands are made from DuPont Tyvek. Each one is perforated and 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 and security and school trips. Each band is sequentially numbered. Made from materials that are safer for children.