Material : 100% Natural Coconut Shell Charcoal Shape : Cube, Hexagonal, Finger, (According to customer request) Ash Color : white, white cream Moisture : 7.500 to 8.100 kcal/kg Burning Time : >2 hours Superiority : smoke fee, no chemical & no wooden, no spark, fast ignition, odourless, tearless, and long hour burning.