YCL-650 Specifications Level Professional Key of Bb Fingering Boehm Key System 17 keys, 6 rings Barrel Length 65 mm Body Material Grenadilla Barrel Material Grenadilla Bell Material Grenadilla Key Material Nickel Silver Plating Silver Bore Machined Tone Holes Tapered inset type with tapered undercut Thumb Rest Adjustable Mouthpiece Yamaha 4CM Hard rubber Mouthpiece Cap Plastic Ligature Silver-Plated Spring Type Blue steel needle Pad Type Lucien deluxe double skin Posts Threaded