These control wristbands (25x2 cm) are made from tear-resistant Tyvek. The material is feather-light and waterproof. For easier identification, the wristbands are sequentially numbered. Application is simple: just peel off the protective film, press the ends together, and it's securely fastened. The adhesive provides an extremely strong hold, making the wristbands non-transferable. Tip: Tyvek wristbands can be easily written on with a ballpoint pen or waterproof marker. For larger quantities (1000 pieces or more), this product is also available in boxes of 1000. Each blister pack contains 100 pieces. (Also referred to as Tystar identification wristbands, neon/bright).