These are tough, waterproof, non-tear, non-stretch wristbands available in a variety of colors. They feature pinfeed holes at either end of the wristband for printing in your home or office pinfeed printer. All wristbands are consecutively numbered. They come with a very strong adhesive and have tamperproof slits making them impossible to remove in one piece for transferring to another person. These Tyvek wristbands are 10" long and 1" wide.