3/4" Silver Tyvek Wristbands for Events Identification Crowd Control, 100 Count 100 Pack Durable Tyvek wristband - Tyvek has the paper wristband appearance but actually plastic. Do it yourself customizable - Printable for appropriate printer types like Xerox Colorqube 8875. Durable & Reliable - Tear-proof, stretch-proof, and 105% waterproof 5-digit security code printed sequentially - Sequential code numbers will change with color. Vibrant color! Actual colors may vary slightly due to photographing. Great item for identification of your special events and parties. Alternate colors for repeated small parties.