Built for performance and durability Made in United Kingdom Crafted from the highest quality materials ACME 636 Slimline Tornado marine safety whistle. Acme’s patented top venting system prevents accidental sound blocking when held in the hand during blowing. High Power, Slimline, Treble Frequency Whistle 6 Pack

Slimline, small and flat, loud and high pitched. The little whistle with a big punch.