A whistle made of titanium. WTNDX adopted titanium in which it is lately being focused as a high-end instrument material, physically friendly and is used in artificial bone used for medical treatments. The rich tone of this whistle is easily distinguished over the cheers of even the loudest crowd. Persons with allergies or sensitive skin can feel safe with titanium. It does not have an unpleasant metallic taste. You will not tire from holding the whistle for extended periods of time as it is strong and light. Made in Japan. PATENT PENDING.