Pair of Ebony Castanets (Item Code: CASB). Two corded clam-shaped wooden clappers of ebony, played in the palm of the hand. To play, hang them from your thumb so they rest in the palm of your hand. Then drum your fingers on the shell. We do not recommend them for beginners. Each set has a (M) male and (F) female castanet. The ebony will produce a slightly louder and crisper sound than the rosewood. The ebony is stained black for consistent appearance. 2 5/8 inches wide by 3 1/2 inches long (6.75 x 9 cm).