Seisi&uacute;n High D Irish Tin Penny Whistle from ethnicwind.com All Man Made materials that are imoervious to temperature and humidity Key of D - Plays a D Major Scale over 2+ Octaves (most common key for Irish music Will not clog easily (moisture doesn't build up in the wind way) Tunable - Hand Made and Hand Tuned to Concert Pitch A440 at 68 F Measures 12" in length