This mouthpiece is designed to meet the needs of a player who likes the characteristics of the Bach 7E mouthpiece. The Bach 7E is one of the most commonly used mouthpieces for Piccolo trumpet. The rim diameter is about the same as the Bach 7C, but the contour is more comfortable and the cup is medium shallow. This mouthpiece is usually provided with a regular weight ML backbore to match the original Bach. Email or add an order note it you prefer a different configuration. All mouthpieces in the SB line are made by doing a digital scan of the conventional mouthpiece. The cup and alpha angle are slightly modified, and a Wedge rim is programmed to produce a mouthpiece that has a feel and performance similar to the original, but with Wedge advantages. This mouthpiece has our new Double Oval Cup (DOC). The diameter of the rim and cup in the vertical dimension is 10/1000 of an inch larger than it is from side to side. This means that the oval shape of the Wedge rim is continued down to the base of the cup where it joins the throat. The DOC design, found only in Wedge mouthpieces, provides the added efficiency of a smaller mouthpiece with the big sound, clear attacks, and flexibility of the larger mouthpiece. You will be able to choose more options after initial selection.