Material: Bamboo CharcoalBag Color: Black or GreyNote:Color will be sent in random, please note that it may not be the color shown in the picture.Weight: 100gSize: 20 x 8cmFeature:Clean up the air and odor.Bamboo charcoal is rich in calcium, potassium, sodium, iron, etc., not only to purify water, and drink rice drink. And to improve plant rich..