Romera Brass Horn Mouthpiece S30R21 Romera Brass is a popular mouthpiece from Spain. It has a unique appearance and weight, which helps the sound to coalesce. Outer Diameter: 25.5mm Inner Diameter: 17.5mm Rim Width: 4mm (Due to the rounded rim, it feels slightly thinner than the number suggests) Throat: 4.25mm Depth: 21 (Slightly shallow) Suggested Retail Price: 15,400 yen ◼︎Please note: ・This is a used item, so there are some minor scratches on the exterior (the rim and cup are undamaged, so there are no issues with usability).