Black print tyvek wristbands are a single use wristband. 25mm wristbands are slightly larger than standard 19mm wristbands, and are a great solution where visibility of patronage is crucial. Customise your black print wristbands with basic text and images. These wristbands are waterproof, tear proof, and 100% safe and secure. They are used at events, parties and venues to easily identify guests.