SIZE DIAMETER THROAT DEPTH
4B .65 XL X-deep
3C .67 L Medium
7C .65 S Medium-shallow
SCREAMER .63 S Shallow

4B - has a short-shank and is designed to fit UK-style cornets
3C - our version has a slightly larger throat diameter for richer tone!
7C - Standard
SCREAMER - Our shallowest cup - Perfect for Lead-Trumpet!