Gerd Dowids Mack Ansatztrainer für Trompete
Gerd Dowids Mack for Trumpet, Embouchure Trainer for Trumpet, For optimum control of the air flow, Improved version of BERP it is holding all the advantages of it, Original distance between the mouthpiece and instrument is preserved and will not be extended as with the BERP, Can also be used together with the BERP, Made in Germany@+*Does not fit Breslmair mouthpieces!*@+@+