Material High quality plastic Size 70mm*27mm*7mm Application When you travel outdoors, it can help you to confirm your location, avoid getting lost, find your partner, etc. Features ①Made of high quality plastic, light and easy to carry, easy to use. ②The whistle has three holes, each hole sound is different. ③The whistle comes with a hanging chain, which can fix the whistle for easy movement. Instructions for use
