We R Memory Keepers 9 Count Magnetic Posts Refill-Pack, 0.5-Inch To be used with our Revolutionary Magnetic Mat for secure measuring and cutting The Magnetic System keeps your project tight to prevent slipping and mistakes Look for our other Amazing Tools. We have over 100 to fit all your Many Needs To be used with our Revolutionary Magnetic Mat for secure measuring and cutting The Magnetic System keeps your project tight to prevent slipping and mistakes Look for all of our other We R Memory Keepers and We R at Home High Quality Products and Tools!