The ACME Thunderer Whistle with Finger Grip is the official whistle of the Canadian Hockey League and the chosen whistle of the top referees and linesman across the hockey world. This large whistle with adjustable finger grip tapered mouthpiece also includes ACME's gator grip mouth guard.
Official whistle of the CHL
Waterproof speed pea
Easy blow, instant response
The latest high-tech research and development creates the advanced modern ACME Thunderer
Independent laboratory tests have confirmed that it outperforms even the closest copies
Includes whistle, finger grip, and mouth guard piece