The heel tap with the BIG tap sound! (Fibre included) Researched and designed for the ultimate in tap sound, Leo's Ultratone taps provide the fullest, richest sound there is! Crafted from high quality aluminum alloys, the Ultratone features a unique sound box shape that created unequal tone and rich resonation. Available in larger sizes so all tappers can enjoy ultimate volume, pitch and performance. Material: Aluminum.