What you will receive•You will receive a 2ml glass vial of cast Iron metal that it in a granular form. As seen in pictures.4% carbon content.1mm bead size• Sweet Stocking stuffer, Christmas gift• Great chemistry gift•Amazing science giftThe Facts•Cast iron, an alloy of iron that contains 2 to 4 percent carbon, along with varying amounts of silicon and manganese and traces of impurities such as sulfur and phosphorus.•Cast iron first appeared in Sweden in the 13th century•it was used in some of the earliest skyscrapers. In the 20th century, steel replaced cast iron in construction, but cast iron continues to have many industrial applications.• This is high quality yet cheap affordable cast Iron shot.Safety / Caution•Keep out of reach from children!•Do not ingest.Shipping• I offer free shipping to the USA• International will be additional