Specification : Size : 25 x 25 x 25mm ( cube ) Material : 100% coconut shell Fixed Carbon : 78% Volatile Matter : max 14% Moisture Content : 6.2% Ash Content : 2.3% Total Sulfur : 0.09% Gross Calorific : 7179 Kcal/kg Bulk Density : 0.735 Duration Normal : 2 hour