E = mc² – Genius Mode On キーホルダー

Make a bold statement with this E = mc² typography design, inspired by the most famous physics equation in history. Featuring a clean yet striking red and white text on a black background, this design is perfect for science lovers, physics students, teachers, engineers, and geeks who appreciate smart and minimalist aesthetics. Ideal for t-shirts, stickers, posters, mugs, and more — whether for school, work, or everyday wear. A great gift idea for STEM enthusiasts, nerd culture fans, and anyone who loves science-inspired art.