Cocnut Charcoal For Shisha Made in Vietnam Medium to High Quality Diameter 20-22mm Lenght 5/7/9cm Moisture Content 7% Ash Contet on Dry Basis 8% Total Sulfur Content On Dry Basis 0.05% Calorific Value On Dry Basis 6,350 kcal /kg Carbon Content on Dry Basis 65%