These are tough, waterproof, non-tear, non-stretch wristbands available in a variety of colors. Featuring a detachable stub on one end of the wristband, they are perfect for raffles, giveaways, or tallying guests. All wristbands and stubs 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 3/4" wide.