20Pcs Horn Piston Pad Replacement Noises Resistant Rotary Valves Buffering Stop for Euphonic Tuba Wind Instruments Features: OOTDTY Make of Silicone materials, flexible, not easily deformed. The function of this product is to separate the Noises, buffering effect. Suitable for flat key euphonium / tuba / round rubber. The packaging includes 20pcs horn piston rubber pad, enough for you to replace and use. Provide stable airtightness and sound quality performances for instruments. Specifications: Materials: Silicone Color: Black/Clear Size: As shown in the picture Package Includes: 20pcs Silicone Pad Note: Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. _x000D_ _x000D_ _x000D_ Due to differences in shooting equipment, displays, and production batches, the product may have slight color differences. This is normal, please refer to the actual product. We have tried our best to restore the true color through professional equipment, but we still recommend that you watch it under natural light for the most accurate visual effect.