Made of premium material, the whistle is solid and durable. With loud sound, it is suitable for outdoor sports, like hiking, camping, climbing, etc. It is also for daily exercise, like pet training, football, basketball, soccer, hockey or others. With mini and portable size, hanging keychain ring decor, it is easy and convenient to take it anywhere you want. Features -Color:Yellow-Material:Brass-Size:9.00X5.50X0.50cm/3.54X2.16X0.20in-Made of premium material, the whistle is solid and durable. Not easy to deform and rust.-The little whistle is really deafening loud and can still be heard from a distance.-Designed with a hole, it is easy to carry, or only wear it around your neck with a lanyard.-Also, can be a good gift choice for your friends who like outdoor activity, they will like it.-With great sound penetration, can beeasy to whistle and make a loud, clear sound. You can quickly catch the crowd'sattention anytime you want. Packing list: 1 x Whistle