OKURA+MUTE Practice Mute for French Horn & Bass Trombone Color: Black Purchased over 7 years ago, but it didn't fit the bell of my instruments, so it was stored in a warehouse. It has been opened, but is almost unused. * There may be differences from the latest specifications, but I haven't investigated in detail, so please judge from the photos. * I remember that the two types of parts called "attachments" were not included at the time of purchase. I was planning to discard it, but I will sell it at a low price.