All Brass Trombone Mouthpiece Size 12C e-brass Ultimate Brass Mouthpieces do not

Ultimate Brass Mouthpieces do not utilize a traditional numbering system

We are incorporating only the finest plated steel hardware

Straight Mute –All Aluminum

The shape provides a sound that carries easily with accurate intonation

Length: 79mm

All Brass Trombone Mouthpiece Size 12C e-brass Ultimate Brass Mouthpieces do not12C (BT12C BTP12C) O. D (Outer Diameter): 39mm I. D (Inner Diameter): 24. 55mm Cup Depth: 18. 98mm Rim Width: 7. 225mm Throat: 5. 78 Length: 79mm Cup Description: Shallow bowl cup with a small diameter. Sound Description: Small piece with a brilliant sound. Ideal for popular music. (All models come in small or large shank)