Cannon Sports Rubber Whistle Tip Guard Covers for Referee, Coach and Sports (Blue)
CSI makes the one and only Blue Rubber Whistle Tip Guard that is easy to slip onto any whistle. Whether its metal or plastic the whistle tip guard will allow you to gently bite the whistle when running without having to worry about chipping your tooth. The rubber whistle tip should be used only by one person, allowing them to use anyone's whistle -- keeping them protected from germs.
