- Medium cup - Cup diameter: 17.00 mm - Medium wide rim - Backbore 10 - Slightly brighter and more brilliant tone than model 1B - Particularly large cup for players with a robust embouchure - Mainly used by trumpeters in large symphony orchestras who have to switch between Bb, C and D trumpets - Amazing tonal volume of brilliant sound - Gold-plated THIS ITEM IS CURRENTLY NOT AVAILABLE YOU CAN CONFIRM THIS INFORMATION BY CLICKING ON ITEM