Enjoy an endless opportunity for metaphors and puns. Shock and amaze unsuspecting initiates into the world of metallurgical wonders. Aluminum alloy cube. 1.5" x 1.5" x 1.5". Aluminum has a relatively light density and the engraved face makes for a great conversation and demonstration piece. Includes certificate of chemical composition and interesting aluminum facts. Machined from precipitation-hardened aluminum alloys, this cube is an excellent contemporary addition for your desk at work or side table at home. Now you can add one of nature's wonders to your own collection. If you like the engraved aluminum cube, check out our engraved tungsten cube!