Key of Bb/F, .525" medium-large bore, 8" two-piece yellow brass bell with engraving, F rotor mechanism, ball bearing rotor linkage, traditional wrap, chrome-plated nickel silver seamless inner slide, brass outer slide, chrome-plated handgrip, tubular brass body braces, clear lacqwuer finish, genuine Vincent Bach 6-1/2AL mouthpiece, wood shell case.