HIGH DENSITY QUALITY MATERIAL: The Copper cube is made of high density metal elements, non-toxic, safe and reliable, purity up to 99.99%, size 10MM*10MM 0.39 inch cube.
LASER ENGRAVING: The cubes are laser marked with information including atomic density, name, symbol, atomic number, atomic weight, purity, etc., which is convenient for you to identify and use.
EASY STORAGE: Each element cube comes with a beautiful acrylic storage box, and each element is vacuum-packed to maintain its natural appearance and prevent oxidation.
WIDE APPLICATION: Density cubes can be used in labs, offices, science rooms, teachers, gifts, science demonstrations, suitable for people of different ages, good knowledge of metals, elements, different densities
AESTHETICS: Precisely cut and finely crafted, the cubes have a beautiful appearance, natural color, matte finish, handmade stripes