[3 Sizes Wooden Frame] 21cm/8.27in, 30cm/11.81in, 40cm /15.75in. You can change up the poster or kids canvas artwork from time to time as you like. [Magnetic Poster Hanger] Each set contains 4 wooden strips, which embedded with strong magnets to clip your artwork firmly. A big thickness of your poster may affect the magnets, so it might not be for thick poster or canvas. [Easy to Hang] The hanging poster frame is easy to set up. Simply unroll your map, catch it in the magnetic panels using the magnets to firmly hold it in place, and hang it on the wall of your choice. As simple as that. [Wonderful Home Decoration] A perfect wall decorations for living room, bedroom, kitchen, office, Hotel, dining room, office, bathroom, bar etc. Kindly note: Poster is not included.gadget gifts [Good Material] Poster hanger is made of wood material, non- and long lasting. You can change the photo poster at anytime without damage, easy to carry and storage.