YAMAHA JAPAN 58 (Large Shank). The plating is peeling on the shank. There are some scratches on the rim, etc. For reference: [Rim Inner Diameter]...26.84mm [Throat Diameter]...7.25mm [Features]...It has a moderate cup and rim, making it easy to play from the mid-range to the low range. The sound is clear and has flexibility. #Trombone #Euphonium #Brass #WindBand #Trombone #Euphonium