Kora grass grows along the banks of the rivers. The process of creating the mat is complex and painstaking. The grass for the mats is cut very fine, while it is still green. The strips of grass are dried in the hot sun. When dried grass strips turn a yellowish greenish colour, they are boiled in a pot of water and dried again. The dried grass is made up into bundles and soaked in running water for 3-7 days. This wetting causes the grass to swell up to three times its original size. It is then dried again in the sun. The weaving is done on a floor loom. The mats woven are very fine with counts ranging from 100 to 140. It is then finished with a polishing stone.