100% Coconut Shell, Machine Made Charcoal, Briquette 2.5 x 2.5 x 2.5 cm, or as customer's requirement. Fixed Carbon 75%, Ash 2 2,5% max, Volatile Matter 5-7%, Calorific Value 7000 kcal/kg min, Moisture 1%-2%, no smoke or smells, no sparks or flames, no chemicals, mineral additives or fillers, easy to light, do not alter the flavor and smell of food, burn hotter and last longer than coal-based briquettes.