Trumpet mouthpiece - produced using the most advanced computer design and manufacturing technology. Standard Series mouthpieces feature unmatched precision, smooth attack, secure control, and easy playability. They have the ideal weight for all-around usage and are available in over 100 configurations. High volume with an exceptionally large inner rim diameter and deep cup. For advanced orchestra players. It has 17.42 mm rim inner diameter and 3.65 mm throat.