Description This product is a convenient and practical whistle, made of high-quality stainless steel material, safe and durable. Can serve you for a long time. It has a simple design and practical functions, can provide you with a good experience, and will bring you a lot of convenience. It is a very convenient and practical whistle that can be used for sports, outdoor assistance, etc. Features -Color: Silver -Material: Stainless Steel -Size: About 6.80X2.20X2.20cm/2.67X0.86X0.86inch -It has a relatively light texture, convenient and practical, and easy to carry. -Excellent craftsmanship can ensure that the whistle sounds loud and clear, high in pitch, loud in volume, and can be played vigorously. -It has a wide range of applications and can be used for sports, outdoor assistance, etc. -Emergency whistle is a good thing for football sport, referees and teachers. -For friends who like outdoor activities, this is a very practical tool that can improve safety. It has a relatively light texture, convenient and practical, and easy to carry Excellent craftsmanship can ensure that the whistle sounds loud and clear, high in pitch, loud in volume, and can be played vigorously It has a wide range of applications and can be used for sports, outdoor assistance, etc Emergency whistle is a good thing for football sport, referees and teachers For friends who like outdoor activities, this is a very practical tool that can improve safety