Acme 4868 Acme Thunderer Whistle, Large
The ACME thunderer whistle has been relied upon by top referees and officials for 130 years.The ACME Thunderer whistle, which is ideal as a referees whistle, has a waterproof speed pea which works in rainstorm conditions. The whistle has a large square mouthpiece with deep tone. It's easy blow gives an instant response, perfect for petulant players!