Made in England by Kerry Whistles.
Optima Mezzo C Tuneable Whistle by Kerry Whistles
Optima Mezzo Bb Tuneable Whistle by Kerry Whistles
Tunable High D Tin Whistle, KerryWhistles Optima Mezzo
Optima Tenor E Tuneable Whistle by Kerry Whistles
Optima Alto G Tuneable Whistle by Kerry Whistles
