10-PIECE CUBE-SET: Enjoy a comprehensive collection of 10mm metal-cubes, including tungsten, titanium, bismuth, carbon, aluminum, iron, magnesium, copper, zinc and chromium-cubes. PRECISE ENGINEERING: The 10mm-cubes are non-, safe and suitable for all ages. They are manufactured using cutting- to produce crisp edges and flat cut surfaces with the lowest tolerances on the market (+/-0.1)mm. LAB-Grade Purity: The purity of metal-cubes is very high, ranging from 99.5% to 99.99% for different elements. Vacuum packed to maintain its natural appearance and prevent oxidation. Laser Engraving: Each-cube is engraved with a chemical symbol, name, atomic number, density, purity, atomic mass and melting point. Unique Diversity: Contains several rare metals. 11x density range, from 1.73 g/cc (magnesium) to 7.6 oz/cm (tungsten). VET OWNED: We sincerely appreciate your support and know this set is perfect for your elements collection, classroom, science experiment, block display, or educational gift. Colour:As Shown Material:Metal Size:10mm Package Contents: 10 * metal-cubes 1 * storage box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.