High Quality Material: Hand squeeze whistle is made of premium PVC , durable and lightweight. Perfect Size: 2.64inchx2.64inchx5.04inch, the hand whistle is portable to handheld and carrying around. Loud Sound: The hand squeeze whistle is mechanically constructed, loud and crisp. Easy Using: Just squeeze the hand squeeze whistle , you can get a loud and clear sound. Wide Applications: This sports whistle is widely suitable for camping, trekking, trekking, hunting, fishing, boating and traveling, etc. Specification: Material: PVC Size Chart: 6.7cmx6.7cmx12.8cm/2.64inchx2.64inchx5.04inch Package Includes: 1 Hand Whistles Note: 1. Please allow slightly error due to manual measurement. 2. Due to difference between different monitors, the picture may not reflect the actual color.