eBoot Sports Coach Whistle with Lanyard and Stainless Steel Coach Whistle with Spiral Bracelet, 2 Pack The one is coach whistle with lanyard, the other one is coach whistle with spiral bracelet This whistle has a crisp sound 2 Sports coach whistle in 2 ways of using Suitable for referees, coaches, or anyone who needs a safety whistle Product dimension: 4.6 x 2 cm (1.8 x 0.79 inch)