Bob Reeves has been crafting quality mouthpieces since 1968 and offers a selection of cornet mouthpieces to please any player. Comes with your choice of the following cup depths S cup&#255&#255&#255&#255 Good for 1st cornet in concert band M cup Darker tone than "S" cup. Good for the player that "bottoms out" on shallow cups C cup Good for general, all around cornet playing B cup Very dark, characteristic, cornet sound...