Show off your expertise with this eye-catching black t-shirt. Made from comfortable fabric, this shirt features a playful design with the witty quote, "That's What I Do I Build Rockets And I Know Things". Perfect for rocket scientists, engineers, science enthusiasts, or anyone who loves a clever statement tee. Wear it casually, at science conventions, or even while launching your own rockets! The lightweight material ensures all-day comfort, making it a fun and unique addition to any wardrobe. Let your knowledge shine with this quirky and cool shirt!