What You Will Get: you are provided with 1 piece of aluminum bar, which is 1 pound and 999 pure; With our elemental Square, you will find the fun of perfect and meaningful world of the elements Precision Craftsmanship: using technology, this metal Square is engineered to have great precision, crisp edges, and flat surfaces, and it has a startling tolerance of just +/- 0.1mm, which is industry standard Long Lasting Strength: our metal paperweights adopt sturdy metal construction to enduring endurance; They are resistant to rust and deformation, a long term investment in the study of the riches of the periodic table Thoughtful Design: our 999 pure bullion is laser engraved with elemental information, such as chemical symbols, atomic characteristics, and density; This not only makes the learning elements more visually appealing but also convenient Practical Study Tool: our metal chemistry elemental bars are thoughtful presents that can be handed down from generation to generation and are useful in the business, , or in the school; Discover the wonders of densities and learn about the special characteristics of metals in situations Colour:Silver Material:aluminum Package Contents: 1 x Metal Bar Paperweight 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.