Show off your nerdy side with this unique black t-shirt! Featuring a playful "√400 Years Old" design cleverly incorporated amongst various math formulas and equations, this shirt is perfect for anyone with a sense of humor and a love for mathematics. The design is printed in white, creating a stark contrast against the black fabric, making it easily readable and eye-catching. This shirt will surely be a conversation starter and a great way to express your quirky personality. Perfect for casual wear, school events, or math club meetings!