Suitable for flat key euphonium / tuba / round rubber. The function of this product is to separate the Noises, buffering effect.
20Pcs Euphonic/Tuba/Horn Piston Pad Rotary Valves Silicone Buffering Stop
20Pcs Horn Piston Pad Rotary Valves Buffering Stop for Euphonic Wind Instruments
20Pcs Horn Piston Pad Replacement Noises Resistant Rotary Valves Buffering Stop
