After a lot of research by the designers the ZO instrument range has been made from a specially formulated polymer to create great sound and response. The formula is also a winner when it comes to strengthening the instruments. The use of stainless steel in the instruments main moving parts, the valves, has proved to be a great provider of constant centered tone and helps to make the instrument play smoothly. All of the ZO instruments sport a matte finish in a range of colours that look so cool to the common eye. Lightweight and practically unbreakable these instruments are perfect for even the smallest of player.