Our Coconut Charcoal Briquette for Hookah use the best coconut for the raw material from Indonesia which is the best coconut product in the world, our following specification are: Shape and Size As Requested Ash Content 2.0 - 2.2% Total Moisture < 6.0% Burning Time 2.0-2.5 hours Fixed Carbon >80% Volatile Matter 14% we accept hexagonal cylinder cube shape Please let us know should you are interested with the offer and feel free to reach us out through this e-mail