Used condition. - Type: Michael Rath R4 (large bore) - Material: Sterling Silver - Condition: Used Thank you for viewing. This is a custom-made silver pipe for a Michael Rath R4 large bore trombone, adapted to fit the screw threads of the R4, similar to the optional silver pipes found on Yamaha 882 trombones. (Commissioned at a musical instrument store in Kamata) Michael Rath offers sterling silver lead pipes as an option, but due to the recent rise in the pound, the product costs over 100,000 yen, so I requested a custom-made one. Michael Rath trombones are characterized by their straightforward sound and the ability to play them without using much physical strength. However, some players (Bach users, for example) may find them lacking in power. When I first bought it, I wanted to counteract those characteristics. I felt that the resonance in soft passages became richer, and the "sweet spots" in the high register became clearer, giving me the impression that the instrument was even more helpful. Due to various circumstances, and because I felt limited by the physical exertion required by a silver pipe, I am putting it up for sale. Please comment if you are interested.