Usage Tips:Our high-decibel whistle effectively attracts attention. Loud whistle sound that can be heard from a distance. This product is ideal for all your outdoor adventures. Featuring a convenient lanyard design, the whistle is easy to carry around your neck or attach to your gear, helping prevent accidental drops and loss while keeping it within reach. The plastic whistle has a lightweight and compact design, making it suitable for various occasions. It can be easily stored in your backpack. Available in multiple colors, allowing you to choose your preferred option. Suitable for use by football and basketball referees, as well as other applications. Made of high-quality ABS material, the whistle is waterproof, rust-resistant, and fade-resistant, ensuring long-lasting performance 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 differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement. Package Includes: 12 x Whistles