"Michael Rath R10 Tenor, Bb Tenor Trombone, Bore: Ø 0.5"" (12.70 mm), Bell size: Ø 7- 1/2"" (190.50 mm), Bell made of yellow brass, Nickel silver outer slides, Tuning slide made of yellow brass, Gooseneck made of yellow brass, Lead pipe: #10,...
