DENIS WICK 6B trombone mouthpiece, offering excellent sound quality and response. - Brand: DENIS WICK - Model: Trombone Mouthpiece - Size: 6B Thank you for viewing. Purchased about 35 years ago and used for euphonium for about 5 years. It's a small shank. As it is an old item, there are some areas where the plating has peeled off and there are stains that cannot be removed, but there are no dents and it can be used normally. It has been cleaned as much as possible. Since it is a very old item, please refrain from purchasing if you are sensitive to such things. Please only purchase if you understand that it is a used item.