This is a mute for tenor and tenor-bass trombones that Yamaha used to sell. It's the same as the joral mute TRB1A from back then. Purchased over 10 years ago, it has scratches and dents. The tip is warped, so please check the photos. It's made of aluminum, so it's prone to scratches, but I rarely used it at home. The cork is unscratched and in good condition. I think the condition is good, but please refrain from purchasing if you are sensitive to imperfections.