Wood Hanger Kit for Artwork. Teak Wood. For use with our Cavallini & Co Paper Sheets. Magnetic poster hangers with powerful magnets, strong enough to hang prints, maps, posters. Wide Compatibility: The 20 inch magnetic poster hanger can be used for any 20" wide poster such as 20x28, 20 x 30, 20x24. Changeable and damage free. Easily change your posters. [SPR 4523124326488]