High-density element discs are made of high-density metal elements, are safe for all ages, and are practical educational applications for different grade levels. They are also great for chemistry element collections and display. Great for element collections, hobbies, DIY, experiments, and material display. The element dice can be applied for understanding metals, elements for labs, science, teachers, science, and gifts.Specification Shape: DiscSize: 30 x 2mm / 1.18 x 0.08 inch ( Dia * H )Atomic Number: 13Chemical Name: Aluminum (Al)Atomic Mass: 26.982Purity: 0.9999Boiling Temperature:1221℉Density: 2.
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