This stylish black t-shirt features a playful "Knock Knock Who's There Doctor" design. The text is rendered in a combination of red and white, with a vintage-inspired font that adds a touch of retro charm. Made from a soft and comfortable fabric, this tee is perfect for casual wear. Show off your sense of humor and love for medical puns with this unique shirt. Wear it to work, school, or any casual outing. A great conversation starter and a fun addition to any wardrobe!