1C: 17.00 mm cup diameter, medium cup, medium wide rim, with cornet shank. Large diameter, medium cup. Good for all-around use.
1 1/4C: 17.00 mm diameter, medium cup, medium wide rim, with cornet shank. Large cup for powerful cornetists. Compact tone of great carrying power.
1 1/2C: 17.00 mm diameter, medium wide rim, with cornet shank. Not too sharp. Large diameter, medium cup; good for all-around use.
3C: 16.30 mm diameter, medium wide rim, fairly large cup, with cornet shank. Good for all-around use.
7E: 16.20 mm diameter, medium wide rim, with cornet shank, for piccolo trumpet. Shallow cup - produces a crisp, sparkling tone in the extreme high register. Widely used for piccolo trumpet.