charcoal briquette:Charcoal briquette uses for outdoor cooking. Briquettes charcoal are far more efficient than environmentally damaging fuels such as firewood, kerosene and charcoal. Briquetted charcoal have some advantages including easy-lit, smokeless, odorless, no spark, high heat value, not easy to break and long burning time.Details:Shape: Cylinder - Size (cm): (length) �(diameter) 12 �2Burning time: 50-60 minsCarbon Content (%): 90Ash Content (%):