Binboll Whistles---Used for Outdoor Acitvities, Sports Events, Training
Specifications:
Material: Stainless steel
Sound Volume: 150db
Size: about52×18×8mm (L×W×H)
Weight: 24g
Features:
Made of food grade stainless steel, more Double-Tube design with crisp sound.
Belt buckle,can be fastened to your belt, shirt, pocket.
Small size with light weight, portable.