Hold Number Mouth Mouthpiece Mouthpiece Decompression Valve Mouthpiece Pressure Adjustment to Correc

High-quality brass is , the surface is gold-plated and silver-plated, the sound conductivity is better, and the pressure can be adjusted when playing, so that the playing is more labor-saving and the pronunciation is more beautiful.The cup spouts are carefully designed and made by CNC machine tools, with more precise precision and a better fit with musical instrumentsProduct:Baohao Pressure Relief Valve Decompression TrainerColour:GoldMaterial:silver platedSize:1.3x2.5x7.9cmPackage Contents:1 * pressure reducing valve1 * ABS boxOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.