Coco Nara Coals are 100% natural, made from compressed coconut husks and shells. The dimensions of the briquettes are 1 inch by 5/8 inch. They burn hotter and much longer than most other natural coals. Coco Nara is the preference of most hookah connoisseurs, because they are virtually odorless and tasteless. Like many other natural coals, a stove or torch is necessary to get them going.