The metal-plastic guides for valve by Stomvi are unique in their design. The plastic coating on the connection joint reduces the characteristic noise of metal guides, while preserving the vibration transfer.
They are made of high quality brass. By replacing the usual plastic ones with plastic-metal ones, a more concreteness tone is achieved, facilitating the transfer of the vibration throughout the instrument.
At REPARABRASS, the Stomvi repairs section, we can install them on your trumpet.
Available for most brands (please consult).