The borrindo is a hollow clay ball with three to four holes. The top hole is larger than the others, which should be of the same size. The holes are arranged in an isosceles triangular form. The borrindo is made of clay commonly available in most of the central Indus Valley, and is thus often used in Sindh. This simply constructed instrument is sometimes made by children in the region. Artisans make larger borrindos with intricate designs and fire the clay. The notes for music are produced by blowing across the largest hole, while fingering the smaller holes to produce specific notes (images and information from Baloch 1988).