500 Blue Happy Face Tyvek Wristbands. Tyvek wristbands are considered throwaway. Use them once, then throw them away. They'll last for a few hours to all day. Often referred to as paper wristbands because they are so light, but they are very strong and will not tear.
Order before 2pm ET and your wristbands will ship out the same day. Sold in multiples of 500.