Number of valves 4 (3R/1L) Style upright Key Bb Bell diameter 290 mm (11,417 inch) Valve section compensating Type of valve section top action waterkey on 1st and 3rd valve Bore of valve section conical 15,5 - 16,2 mm (0,61 - 0,638 inch) Type of body brass body Material of mouthpipe goldbrass Mouthpiece BT18 Silver Plated With case
