Walnut Wooden Poster Hanger - magnet self assembly (6 inch (15.24cm)) Pre-installed neodymium magnets make it easy for the four wooden straps to assemble with your artwork. Stick and hang within 10 seconds. No tools necessary. Adds a decorative touch to your wall. The wood straps are sanded and waxed by hands. They come with the jute twine. Width: 1 " (2.54 cm) Height: 1/4 " (0.635 cm) Length: Choose from the option.