Funny 11th Birthday T-Shirt - Root 121 Years Old

Celebrate a special 11th birthday with this fun and clever t-shirt! The design features a square root symbol with the number 121, followed by the words "Years Old", making it a playful math-themed gag gift. This black t-shirt has a classic fit and is likely made from a comfortable cotton blend, ensuring a soft feel. It's perfect for birthday parties, school events, or everyday wear, showcasing a witty sense of humor. Surprise your favorite 11-year-old with this unique and memorable birthday present!