A non-slip, adaptive way to cut! For use with the Sew Magnetic™ Mat and SewTites Boosters of your choice (sold separately). The 6.5"" x 6.5" Sew Magnetic Ruler is an acrylic ruler with 4 embedded magnets to work with the metal in the Sew Magnetic mat to keep your ruler in place while you cut.  The ruler features turquoise and black imprint with the 1/2"" numbers in turquoise boxes and the 1" numbers in black boxes – and there are ¿” and ¼” markings, as well as 30°, 45°, and 60° guides on it. We designed it so you can use it right-side-up for whole-inch cuts or flip it 180° for work needing half-inch cuts. The magnets in the ruler are strong enough that your project doesn't slip, and light enough that the ruler also easily shifts where you want it to. With the Sew Magnetic Cutting System, you don’t have to push down very hard to hold everything in place – so it's a more ergonomic and adaptive way to cut than ever!  For use with the Patented cutting system & method exclusively licensed to Culcita LLC DBA SewTites. U.S. Pat. Nos. 9,956,811 B2 & 10,272,715 B2 * Made of: Plastic * Use: Ruler / Measuring * Size: 6-1/2in x 6-1/2in