The Acme Tornado Slimline Whistle is available if four different colours – slimline, small and flat whistle with a loud & high pitch. The official ramblers whistle and used by the Mountain Rescue Council. Features Water safe – Unaffected by water. Pealess Very high frequency Excellent for indoor and water sports Approved for referees, lifeguards and basketball Approved for life jacket, immersion suit, life raft and rescue craft regulations Blow Tone: 4700Hz 4.5cm long Weight 1g
