B0TAO Metal Whistle Sports Whistles with Lanyard for Referees Lifeguards Survival Emergency Football Basketball Soccer Flexible to use: comes with a comfortable nylon lanyard for each metal sports whistle so that you can hang around your neck or hang on the wall, allowing your hands to do other things flexibly Durable to use: made of metal, the sports whistle is durable and can be applied for a long time; The surface is smooth, bringing a safe and convenient using experience to you Practical to use: each training whistle produces a clear and loud sound; When you blow your whistle, others will quickly find your position, a practical tool when you are training others Suitable for: these loud sound whistles can not only be applied in a variety of sports events, such as running, hiking, camping, tennis training, etc., but also for fans calling for their idols and outdoor emergencies, versatile to use Color: yellow Size: whistle size 4.5*1.4*2CM Quantity delivered: 6 pieces Warm prompt: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding 3. Only the above package contents, excluding other products.