The design features a bold, black and white sign that immediately catches the eye. The sign is rectangular, with a thick black border that frames the white text inside. The text is arranged in a block format, with the word "CAUTION" at the top in large, capital letters. This is followed by the phrase "I HAVE NO FILTER" in a slightly smaller font size, also in capital letters. The word "FILTER" is emphasized by being in a larger font size than the rest of the text. The overall design is simple yet striking, with the contrast between the black text and the white background making the message clear and unmissable.