Elemental metallic 1 cm elemental cubes These highly polished cubes are great educational tools Laser engraved. Highly polished. For true metal lovers! Materials: Oxygen-free Copper; Aluminum; Carbon; Iron; Tungsten; Metallographic Silicon Size: 10*10*10mm We are back with a new collection of elemental density cubes! These solid exotic elemental cubes are highly polished by hand for many hours to reach a mirror finish. For true metal lovers! Each cube is 1 centimeter on each side (0.39 in). About Polar Metals Polar Metals seeks to spice up your life with interesting and unusual metals in unexpected ways. The elements on the periodic table are everywhere, in fact, they make up everything! So far, we have brought 29 Elements to you: Silver, Silicon, Germanium, Nickel, Chromium, Zinc, Niobium, Tantalum, Hafnium, Rhenium, Thulium, Lutetium, Scandium, Ruthenium, Platinum, Palladium, Gold, Iridium, Osmium, Titanium, Cobalt, Magnesium, Zirconium, Molybdenum, Copper, Aluminum, Carbon, Iron and Tungsten. *Note: Please wear gloves when handling.