Bore .504″ – .531″ bore = 12,8 – 13,5mm;Yellow brass bell: Ø 8 3/8″ = 211mm;Gold brass leadpipe;Nickel silver outer slides;3 top-action valves;Stainless steel pistons;Original VINCENT BACH 12C mouthpiece and valve oil;Light weight case with rucksack assembly;Clear lacquer finish;
