Graphics and More Do Not Disturb Breast Feeding in Progress Please Knock and Wait For a Response Before Entering Plastic Door Knob Hanger Sign Made of a durable thick plastic 3.5" (8.9cm) x 9.5" (24cm) in size Design shown printed on one side with UV- and water-resistant inks Can be used indoor or outdoor Hole is universal sized and will work with all standard door knobs