Magnetic poster hangers with powerful magnets, strong enough to hang any kingds of prints, maps, posters and even tapestry Wide Compatibility: the 12 inch magnetic poster hanger can be used for any 12" wide poster in spite of any length, such as 12x18 12x16 12x24 Changable & Damage Free: change up your posters from time to time in a minute, really easy operation Kindly Note: a big thickness of your poster may affect the magnets, so it might not be for thick poster or canvas Package Includes: 1pcs 12 inches magnetic poster hanger frame for 12x12 12x16 12x17 12x18 12x24 12x36 12 by 18 12 x 36