Mallets found in our professional models have been carefully designed with speci c weights and special characteristics that allow the player to draw substantial tone from the instrument. e core on our two-tone models is wrapped with a special rubber porous with air, which results in an obvious change in tone when going between a hard-hitting forte and delicate piano. Every mallet in the series is carefully made by hand to guarantee the very highest level of quality. Yarn wound models are available with either rattan or birch shafts. Virtuoso Series model suitable for Vibraphone & Marimba.