Thank you for coming to our shop, I hope it is to your satisfaction Item Name: Whistle Material: ABS Features: Lightweight, Portable, Loud Crisp Sound Size Details: L: 5cm, W: 1.7cm, H: 2.1cm Specifications: What this whistle can offer you is black lanyard design, so it can be easily hung around your neck to help you free your hand and prevent it from getting lost. The whistling channel design allows it to blow moderately, and the whistle is loud and clear, which can completely cover the crowd and the noise of the natural environment. It can be widely used in the fields of maintaining order, traffic command, controlling situation, rescue and relief, survival and rescue, entertainment, sports, ports, construction, etc. It is constructed of ABS material. The length of this product is 5cm, the width is 1.7cm and the height is 2.1cm. Applicable to basketball, football, volleyball, various sports or competitions, and ports, buildings, transportation and other fields. And great for referees, coaches, training, teachers, survival, emergency, school, gym, etc. Kindly Remind: Due to light and display, there may be slight differences between the picture and the actual color of the product. The color is subject to the goods received. In addition, please allow slight size difference due to manual measurement. High quality, assured choice is guaranteed Package Includes: 1 x Whistle 1 x Lanyard