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 ban time-beaters used by the Han Chinese, which is why the Western instrument is sometimes referred to as Chinese woodblock. Alternative names sometimes used in ragtime and jazz are clog box and tap box. In orchestral music scores, wood blocks may be indicated by the French bloc de bois or tambour de bois, German Holzblock or Holzblocktrommel, or Italian cassa di legno .