Our Test Tube Caps are the first caps designed to fit both styles of our Tube SHOTZ® and our 6” Unbreakable Test Tube Shots! They come in seven colors so you can color code your shooters and "match or mix them" however you see fit. Their unique design allows them to fit many of our shooter tubes easily and securely. Club owners and party goers will love them, as well as your shooter girls. Be sure to pick up some tube shots and tube trays to go with! Store tubes in an upright position to avoid leakage.