Our high-decibel whistle can effectively attract attention. Louder whistle sound that can be heard from a distance. This product is the perfect companion for all your outdoor adventures. Featuring a convenient lanyard design, our whistle is easy to carry around your neck or attach to your gear, preventing accidental drops and loss while keeping it within reach at all times. Since the plastic whistle has lightweight and compact size design, you can use it in many occasions. It can be easily carried in your backpack. There are many colors to choose from, and you can choose your favorite one. Versatile use for football and basketball referees, as well as other applications. Made of high-quality material, our referee whistle is waterproof, anti-rust, and fade-resistant, ensuring it lasts longer even with regular use. Item Name: Whistle Material: ABS Features: Compact Size, Waterproof, Lightweight, Durable Size Details: Whistle: 5cm x 2.2cm x 1.7cm/1.97" x 0.87" x 0.67" (Approx.)Lanyard Length: 44.5cm/17.52" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes: 12 x Whistles