Do you need a simple way to make sure all of your guests are your guests without going around and asking everyone throughout the event? A simple way to tag your friends, hand out Blue Tyvek Wristbands. When your guests walk through your door wrap a wristband around their wrist marking their admittance. The Blue Tyvek Wristbands, which come in packages of 100 bracelets, are perfect for an Oktoberfest celebration to mark everyone who is of the drinking age, as well as during a Fourth of July party. As long as your guests are wearing these Blue Tyvek Wristbands, you won't have any problems when it comes to figuring out who has crashed your party.