This is an original mouthpiece from the German company E. Schmidt. It produces the noble and expansive sound of a Schmidt horn, with an air of elegance in its craftsmanship. The beautiful breath of tradition and innovation resonates from this instrument. *We do not offer discounts.* Inner Diameter: 17.5mm Bore Size: 3.7mm Cup Depth: Shallow Cup Shape: U-cup Rim Outer Diameter: 25.5mm