With their finely crafted designs and seemingly endless size and shape combinations to fit every unique embouchure, it's only natural that students and professionals the world over trust their tone to Bach Trumpet Mouthpieces. Bach's 7C Trumpet Mouthpiece is no exception, sporting a medium-depth cup with a 16.20mm diameter and smooth, medium-wide gold rim that's slightly sharp on the inside with well-rounded edges. This construction has made the 7C one of the (if not the) most widely used mouthpieces on the planet — its easy-to-use design and bright tone are tailor-made for students and beginner trumpeters with a strong embouchure who dislike the sharp edges of other mouthpieces. When it comes to meeting the uncompromising demands of whatever piece you're playing, Bach Trumpet Mouthpieces will consistently deliver.