This is an F-lever for trombones, crafted by artisans at S.E. Shires, an American trombone brand. Primarily used by Shires artists, its moderate weight positively impacts not only the lever's operability but also the playing feel. The holes have been slightly adjusted to fit various instruments. While I've confirmed it works with an Edwards T350-CR-E, it should fit most Edwards and S.E. Shires models. If it's loose, you can wrap tape around the axis or secure it with wood glue. Please note that I am not responsible if it does not fit your instrument. There is some dullness on the metal parts, which is unavoidable with use. If you are concerned, please use metal polish. Color: Shiny White New Retail Price: ¥22,000-