 They also utilize various membranophone drums (with a conical shape and only one drumhead, played with the palms of the hands) called bocúes.The drums are complemented by three percuted metallic idiophones (made from discarded wheel rims), which are selected considering its sonority.The wind instruments are represented by the piercing sound of the corneta china, a double-reed Chinese instrument that was inserted in the Santiago de Cuba Congas in 1915., and that always performs the initial call to start the Conga (arrollar), which is how the dancing style of the Conga is called, characterized by a peculiar form of rhythmic march, dragging the feet and moving the hips and shoulders along with the music rhythm.