DescriptionThis item is a whistle made of premium material, which can be used for a long time. It has a simple design, but very practical in use, giving you a good using experience. It is easy to use and carry, bring much convenience to you.Features-Color: Black -Material: ABS -Size: 9.00X3.00X1.00cm/ 3.54X1.18X0.39in-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. -Also can be a good gift choice for your friends who like outdoor activity, they will like it. -The whistle ensures loud crisp and higher tones, good volume, blow vigorously.-With special compass and key ring design, convenient for outdoor survival use.