Two Post cereal boxes are displayed on a store shelf. The left box is labeled "Family Size" and "Limited Edition" with "COCOA PEBBLES" and "SWEETENED RICE CEREAL" printed on it. The right box features a cartoon character with a mustache and the text "XTREME CHOCOLATE MUSTACHE" and "WHAT MILK MUSTACHE WILL YOU GET? Match the Mustache!" along with a social media link.