Description Product Description Conn 88HCL Symphony F Attachment TromboneFeatures Key of Bb / F.547-inch bore with .562-inch bore F attachmentFixed leadpipe (material: yellow brass)8.5-inch bell Standard weight handslide (material: rose brass)Handslide crook (material: nickel silver)Open F attachment wrap CL2000 rotor F attachment valve Adjustable thumb leverClear lacquer finishLarge mouthpiece shankIncludes case and Conn 5G mouthpiece The 88HCL Series is the second generation 88H with the CL2000 Christian Lindberg valve.The Conn 88HCL Symphony Series F Attachment Trombone offers thecombination of an open wrap F attachment with a CL2000 rotor. The 88HCLSeries features a .547-inch primary bore combined with a .562-inch boreas the original 88H Series, but with an open wrap F attachment andCL2000 Christian Lindberg rotor for a short throw and an almostseamless transition to the F attachment without a change in resistance.The 88HCL also features a bell taper that continues to offer the sameoutstanding clarity and pr