Item Description
Karl Hammond mouthpieces come in a variety of sizes and styles.
30L
-Geib style cup, which means a slightly shallower and more bowl -shaped cup than a standard Helleberg cup
-Diameter: 1.28
-Cup: .316
30XL
-This is the standard Helleberg shape with great depth of sound
-Diameter: 1.28
-Cup: .316
