Tungsten alloy cube 1 x 1 x 1 inch high density. Surprisingly heavy. Great conversation piece. Includes certificate of chemical composition and interesting tungsten facts. Made from aerospace grade tungsten, this cube is an excellent modern addition to your desk at work or end table at home. Surprise your colleagues and friends with the weight of the cube while still being in your hand. Tungsten is one of the densest naturally occurring elements, and now you can add one of natures wonders to your own collection. If you like the cube, dont forget to visit our tungsten ball.