GENIUS Tee Luv Men's Unisex Gray Periodic Table of Elements T-shirt Medium Science Chemistry Graphic Tee. T-shirt is pre-owned. Please see all photos for visible condition. 52% cotton 48% polyester. Approximately 26 inches long x 22 inches pit to pit. RN # 18853. Charcoal gray in color. Ge - Germanium, N - Nickel, U - Uranimum, S - Sulfur. Unique shirt!