Thank you for viewing. This is a straight mute for bass trombone by Tom Crown. I purchased it about 7-8 years ago, but I haven't used it much, and it has been stored in its box. Although it has been several years, there are some areas with noticeable dirt, but there are no major scratches or dents. Because the seller is reflected in the images no matter how I take them, I have blacked out parts of the images to hide this. Please understand. The thickness of the cork has been adjusted to fit the instrument I was using at the time, so the cork will need to be replaced or adjusted for use. Please consider using it. Please consider this item with the understanding that it is a used item.