Periodic Table Soap! It's Elementary® Periodic Table of Element Soaps are sure to be a hit with all-from science buffs, science buffs, to chemical engineers to geeks - everyone will love these soaps. These are a BEST SELLER with our museum customers, science halls, hospital gift shops and college bookstores! Great impuse gift for that hard to buy for science geek! Each Element Soap weighs a full 4 ounces, is lightly scented with our gender neutral ginger lime fragrance and is packed in a clear 3 x 3 inch gift box. "Radioactive" Elements Glow in the dark by simply exposing them to light or sunlight for a few minutes then placing them in a dark room. Twelve elements glow in the dark! Um (the element of confusion) and Ah (the element of surprise) offer a little added humor to the line! Choose from 45 different elements! As with all of our soaps these are individually handcrafted, hypoallergenic and certified cruelty free!