This is a Benjamin Allen 10E 7 Tenor Saxophone mouthpiece. These mouthpieces are fantastic and they were designed after the crafts of Doc Tenney. This mouthpiece is relatively new and has an awesome sound that can easily project. Additionally, these mouthpiece are extremely balanced with a great tone. Doc Tenney assisted Ben Allen in crafting these mouthpieces, so they are extremely reminiscent of Tenney’s works. For a full description of these great mouthpieces, you can find them at Ben Allen’s website at www.allenmouthpieces.com/model-10e