, charcoal shape of charcoal: lump/round. , burning time: 3-3.5 hours. , application: bbq and shisha. , calories (j): 7069cal/g. , diameter of charcoal: 3 10 cm. , length of charcoal: 3- 30 cm. , ash content (%) : 4.35 , 100% pure natural, no chemical, safe for health , odorless, smokeless, sparkles , long burning time, high heat value , packing in clear pp bag 10kg or 20kgs or customers request.