Transform any room to an officially designated party zone - or let your kids' make their bedroom a strictly "no parents allowed" area with these bold and colorful door hangers. Patterned after "Do Not Disturb" signs for hotel rooms, these versatile signs can be used to advertise products, spotlight services or support sport teams. Each knocker is crafted from high gloss laminated material and die-cut and printed in sizes from 20 to 24 square inches with an open space at the top to slip over most types of doorknobs. Opportunity is knocking - you just need to get the door!