Wristbands a great way to control the crowd at your events. The Patriotic Tyvek Wristbands are a terrific accessory for any summer event. Red, White, and Blue wristbands are perfect for a summer concert, event admission, or to verify drinking age at any party. The tyvek wristbands are numbered sequentially to help you control the crowd as well! Each wristband measures ¾" x 10". As always, the Tyvek is waterproof and tamper-resistant. This inexpensive party accessory proves to be a beneficial item for any event!