ACME Classic Thunderer Whistle - Model 60.5 - Solid Brass Nickel Plated - Shrill Tone - [AC-60.5NP]
ACME's model 60.5 Thunderer Whistle is the original whistle. It has a high, shrill, tone with a high volume. Made of brass, nickel-plated, a silver finish and a tapered mouthpiece, it is the ideal whistle for signalling alert, coaching, refereeing. It is also used widely in police and security forces.