Coarse steel powder mesh 100 is an imported Iron -Steel powder. Some packages are damaged and we will repackage them before shipping. This product may have some contamination caused by repackaging from broken paper bags into the plastic or metal pails. May be used for soil, concrete, sculpture or as a substitute to the cast iron powder.No COA is available for this product.Pay as low as $1.25/lb for special orders of 3000-Lb or more. Please call for special pricing.Also known as Black Iron Powder and Iron Filings.