Description Easier to use than traditional whistles, the hand squeeze whistle makes it easy to make a loud, crisp sound every time, convenient and practical. Compact size and lightweight, which is convenient to carry and store. It can also be used in outdoors activities as emergency whistles. Features - Color: As Shown -Material:PVC - Size: 11.00X6.50X6.50cm/4.32X2.55X2.55in -Made of good material, the whistle is solid and decorative. Not easy to deform and rust. -Also, can be a good gift choice for your friends who like outdoor activity, they will like it. -Made of PVC, the whistle ensures loud crisp and higher tones, good volume, blow vigorously. -The hand squeeze whistle is really deafening loud and can still be heard from a distance. -Widely used as a keychain decoration can also be used for referee whistle. Made of good material, the whistle is solid and decorative. Not easy to deform and rust. Also, can be a good gift choice for your friends who like outdoor activity, they will like it. Made of PVC, the whistle ensures loud crisp and higher tones, good volume, blow vigorously. The hand squeeze whistle is really deafening loud and can still be heard from a distance. Widely used as a keychain decoration can also be used for referee whistle.