This Student Bb Lacquered 3 Valve Euphonium is very responsive with an even warm sound. It features Key of B Flat Beautifully Lacquer Finish Cupronickel Tuning Pipe Rosebrass Leadpipe Bore Size: 14.5 mm Bell Diameter: 280 mm High Quality stainless pistons Mouth Piece Hard case A pair of white gloves Soft Cleaning Cloth.