Abundant Quantity: You will receive 48 pieces of referee whistles with lanyards, abundant quantity and classic black design for your daily use and replacement needs. Loud and Crisp Sound: Our coach whistles are loud and crisp, using peas as filling, easy to use and perfect for use in sports, football, basketball and volleyball games. Portable Lanyard: Adult whistles with lanyard hang securely around your neck during games, practices or emergencies. It can also be hung up for convenient storage. Comfortable and: This black whistle is made of quality plastic, sturdy and, reusable, not easy to deform or break, comfortable and easy to carry. Multifunctional Whistles: These bulk whistles are great for coaches and referees as football whistles, basketball whistles or volleyball whistles. They are also great to use as boat whistles, lifeguard whistles with lanyards and police whistles. Color: Black Material: plastic Package contents: 48 * Whistle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.