A wood block (also spelled as a single word, woodblock) is a small, two-toned slit drum made from a single piece of wood and used as a percussion instrument. The term generally signifies the Western orchestral instrument, though it is related to the time-beaters used by the Han Chinese and called ban. For this reason, the Western instrument is sometimes referred to as "Chinese woodblock". Alternative names sometimes used in ragtime and jazz are clog box and tap box (Blades and Holland 2001).