Upgraded appearance Our block features precise cutting and fine craftsmanship for an exquisite look. The natural metal colour (element colour) with matte surfaces enhances its beauty, and handmade metal strips reinforce its unique design. Full element data The carbon block is laser marked with key element data on the surface: atomic number, chemical symbol, name, density, atomic mass, and purity. This helps you learn more about the elements at a glance. Upgraded material quality Made from high-density carbon elements, these blocks are safe, reliable, and durable for teaching across different grade levels. They are practical for engaging classroom activities, and also ideal for element collections and impressive presentations. Size and contents Size: 1 block; weight: 0.14 pounds; high density. The package contains 1 piece, a block with 99.99% pure elements made of a simple substance, suitable for element collection, hobbies, DIY, study, experiments, and material presentation. Applications - Classroom teaching: hands-on element exploration and demonstrations. - Displays and presentations: science fairs, exhibitions, and shown concepts. - Collecting and projects: element collection, hobbies, DIY experiments, and material demonstrations.