20lbs of Bituminous, Powdered/ground coal. Size ranges from microscopic dust to a maximum size of 1/4". Item ships in a medium flat rate USPS Priority Mail Box. Free shipping on this item! NOTE: We have had several requests to carry this item so we now have it available for sale. This is mostly all powder/dust and the largest pieces are only 1/4" in size. This is ground coal and is NOT suitable for use in a forge or a coal stove. However, this coal is for numerous other miscellaneous uses. Unlimited quantities are available. Also, I sell my coal in boxes instead of bags like some other people are doing, because you can stack a couple thousand pounds of boxed coal into a small corner of a garage very quickly without making a mess and it stays put and does not fall over. The boxes also keep the coal nice and dry. I ship all my boxes of coal with plastic liners in the box to protect the coal from water damage. Also, if you are looking for coal chunks, Check out my other items!! Thanks for looking.