Whistles - Set of 2 x 2 = Total 4 ■ Product Contents ・ Molten Tri-tone Whistle (Model Number: WTRBK) ・ Molten Volleyball Whistle (Model Number: WVBK) ※ Both are brand new, unused, and unopened. ■ Product Features ・ Produces a high-pitched, clear sound, making it easy to hear even in large spaces like gymnasiums. ・ Lightweight and durable, comes with a rope to hang around the neck or wrist. I purchased these but haven't had the opportunity to use them, so I'm selling them. Recommended for volleyball referees and sports coaching. Instant purchase OK.