BEST BRASS Trumpet Mouthpiece 3C - Modified - Gold Plated Finish

"Heavy weight" and "acoustic slit" are ingenuity to embody the best brass sound. It promises a profound sound, long range, and a dignified ``trumpet-like tone.'' Rim width: 5.823mm. Rim inner diameter: 16.85mm. Cup Depth: Moderate. Throat diameter: 3.78mm. Backbore: TP-M.