TWENTY-ONE EQUAL LENGTHS OF BAMBOO LASHED TOGETHER SIDE BY SIDE. STRIPS SLIT FROM THE BOTTOM SIDE OF THESE LENGTHS BUT NOT SEVERED AT EITHER END ARE LIFTED OVER TWO TRANSVERSELY PLACED BAMBOO RODS AND INTERWOVEN WITH FLAT LEAVES IN SUCH A WAY AS TO FORM A CLOSED SQUARE SOUNDING CHAMBER IN WHICH RATTLES ARE PLACED. ON TOP OF INSTRUMENT ARE 14 STRIPS MADE SIMILARLY TO THOSE ON THE UNDERSIDE, BOUND WITH VARIOUS THICKNESSES OF FIBER AT THEIR CENTER AND LIFTED ABOVE THE SOUNDING CHAMBER. REF: TREMEARNE, A.J.W. HAUSA SUPERSTITIONS AND CUSTOMS (LONDON: JOHN BALE, SONS & DANIELSSON, LTD., 1913). P. 321.