The front of these PathTags feature data from the Periodic Table of Elements. Germainium Oxide with Calcium, Carbon, and Helium becomes GeoCaCHe. Add Sulfur, Tungsten, and Silver, and you have SWAg. Finally, Fluorine, Indium, and Darmstadtiumcombine to make FInDs. The tag backs share the chemistry theme. You will get the regular versions of all four tags, plus the glow versions of CaCHe and SWAg.