Product Description Each Tyvek® voucher wristband has a removable 1” stub with a serial number on it that matches the serial number on the wristband. These wristbands are great for raffles, and a great alternative to raffle tickets. What's not to like, you get a raffle ticket and a way to verify paid entries at your event. They are water resistant and comfortable to wear. The backside of the Tyvek® wristband is white, not the color or design on the front. Product Details Voucher Length: 1 inch 1 Removable Tab Waterproof, adjustable adhesive 500 wristbands per pack, separate packs may contain different number series 100% code two, recyclable material Secure, tamper resistant, die cut adhesive tab Strong, durable, and comfortable Upholds writing with permanent and sharpie marker Made in the U.S.A.