B♭ Clarinet Mouthpiece Vandoren BD4 Black Diamond I purchased this selected item here, but I will be using a different one, so I am putting this up for sale. My personal impression is that this mouthpiece is easy to blow. It has been used only a few times and has no scratches, but the marks on the front and side have worn off. The box is clean (there is no indication that it is a selected item). If you understand that this is a used item, please purchase it.