Professional breathalyzer mouthpieces:Breathalyzer mouthpieces are made of hygienic plastic and easily removable, washable and reusable120 Mouthpieces IncludedAlcohol tester mouthpiece easy to install and carry portableEasy to Replace for Rapid Testing, perfect choice for testing multiple individualsThis mouthpiece is only suitable for S80, Scout, Element, Trace and S75 breath alcohol tests