This is bamboo charcoal made from Moso bamboo and Madake bamboo in a charcoal kiln. The width of the bamboo charcoal is approximately 2.5cm to 5.5cm, and the length is approximately 3cm to 20cm. All sizes vary. It can be used as a soil conditioner for gardening, and as a dehumidifier and deodorizer for entryways and shoe cabinets. It is also ideal for moisture control and deodorization in refrigerators. It is also recommended as an interior accent. Thank you for viewing.