• In times of outdoor emergency, this whistle creates a loud survival signal, with a high decibel blast of double tubes
• Made of quality stainless steel, with great hardness and strength, not easy to rust, durable for use
• The whistle can create loud crisp sound. You can use it easily and effectively in any situation
• Great for referees, coaches, teachers, training, survival, emergency, school, sports and so on
• Easily carry or hang it on your keyring, bag, etc

Specification:

• Material: stainless steel
• Size: 11.2*1.8*1.9cm