ComputerGear Nikola Tesla T Shirt Geek Science Glow in the Dark Unisex Tee 100% cotton; Machine wash/dry Machine wash/dry Medium fits 38-40 inches, Large fits 42-44 inches, X-Large fits 46-48 inches, XX-Large fits 50-52 inches Informative Tesla T-shirt teaches about the contributions and patents of Nikola Tesla -- inventor, electrical engineer, mechanical engineer, physicist, and futurist Energize your wardrobe wearing this Glow-in-the-Dark Tesla electricity glow in the dark Tesla Tshirt Only Tesla's name glows in the dark; Made in USA; Makes a great STEM geek gift! Novelty graphic electricity science tee shirts are a ComputerGear EXCLUSIVE