Eb-Alto Trombone AT501
Dual bore .481" / .491" = 12,2 / 12,4 mm;Yellow brass bell Ø 7,5'' = 190 mm;Hard chrome-plated nickel silver inner slide;Nickel silver outer slide;Clear lacquer finish;Original VINCENT BACH 12C mouthpiece and slide grease;Light weight case with rucksack assembly;AT501;