Acme Whistles
Acme 210.5 and 210 Very High pitch whistles are easy blowing, ultra high pitch without cork. And produces a solid tone with a single extremely high frequency.
(one of the highest frequency available in this group of plastic whistles).
Acme Whistles Specifications and Features:
Acme- made in the UK
Very high pitch
Easy Blowing
Ultra high pitch
Solid tone
Weight : 160 g Width :1.5 cm at widest - Length :9.5 cm