Material: Titanium
Size: 51mm*7mm
Weight: about 3.2g

All-titanium structure, embedded whistle core adopts precision stamping process to ensure firmness and durability. No need for ball, high-pitched single tube design, light and clear and pleasant sound. It is widely used in a variety of scenarios, including emergency rescue signals, command rescue operations, training password release and sports events, to meet your diverse needs.