This is a tenor saxophone mouthpiece by Bullseye, famous for their ligatures. It's a Legacy model, an early model that is no longer in production. The opening is 6 (2.1mm). The inside of the mouthpiece is hand-finished, and it has not been refaced since it was purchased new. The baffle is low, and I feel it's easy to produce a thick, soft, and warm tone. Please check the condition in the photos. There is some wear and tear, but it does not affect playability. I own several mouthpieces and mainly use other models, so I've decided to sell this one. Please consider this a used item. This is a set including the mouthpiece and a Rovner ligature.