A 16.2+g sample of Tungsten metal in the form of a machined rod. Purity is 99.95%. These high purity rods make for a very attractive sample of Tungsten metal and fit perfectly inside the supplied 1 dram vial for display. They are very heavy for such a small size, a perfect example of the high density of pure Tungsten metal! You'll get one rod measuring about 5mm in diameter and 30mm long. Please check my Bonanza store for more element samples. I have almost every collectible element available. Thanks for looking.