Birthday House Party Flag - 28" x 40" Nylon Banner For Yard, American Greetings. BIRTHDAY HOUSE PARTY FLAG : Festive colors and graphics draw attention to the "birthday house". MADE FROM : Made from sturdy nylon fabric to withstand outdoor elements. HANGS ON house flag pole or garden banner hanger. TO SECURE BANNER : Sewn eyelets inside pole slot to secure banner. SIZE : Measures 28" x 40" for maximum visibility.