Use these BACtrack MPKC10 mouthpieces with your existing BACtrack Keychain, Vio or Go portable breathalyzer to quickly test the user's blood alcohol content. The plastic design is removable and washable for safe and hygienic reusability.
Obviously not that difficult to review...but I wanted to say that you really need a container to keep these in b/c they get lost very easily.
The plastic bag they come in is not meant for keeping them in.
I would recommend this to a friend
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