Marcinkiewicz 13 Mouthpiece for Trumpet, outside cup diameter 26,97 mm (1,062 in.), inside cup diameter 16,31 mm (0,642 in.), cup depth 11,05 mm (0,435 in.), drill venturi 3,66 mm (0,144 in.), length 87,63 mm (3.450 in.), medium round rim, silver plated, like Bach 7E oder Schilke 13A4a