Knock Knock's Door Knob Messaging provides an open-and-shut solution for communication in the dorm. These sturdy, double-sided door knob hangers relay bold, colorful messages that won't be missed with a sly dash of humor to boot. Whether you're So bored or Studying hard, why say it when you can hang it? * 4 x 10 x 0.5 inches * 3 double-sided door hangers per box; door hangers and box diecut to fit over door knob * Kraft-board box with foil stamping