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Enjoy an endless opportunity for metaphors and puns. Shock and amaze unsuspecting initiates into the world of metallurgical wonders. Tungsten and aluminum alloy cube set. 1cm x 1cm x 1cm. Tungsten is very high density and surprisingly heavy, especially when compared to the aluminum cube. The aluminum practically feels weightless next to the substantial tungsten. Great conversation pieces. Purchased includes emailed certificate of chemical composition and interesting tungsten facts. Machined from aerospace grade tungsten and precipitation-hardened aluminum alloys, these cubes are an excellent contemporary addition for your desk at work or side table at home. Surprise your colleagues and friends with the cubes' difference in density. Tungsten is one of the densest naturally occurring elements, and now you can add one of nature's wonders to your own collection. If you like the cubes, don't forget to check out our Tungsten Sphere.