Freestyle Magents are neodymium "Rare Earth" magnets embedded in a patented grip-holder. They are the strongest magnets known. These magnets are designed to hold images to the GTI Graphiclite viewers but can be used for multiple uses. They hold almost anything tight to steel. Made of nickel-plated neodymium, encased in a patented multi-purpose EZ-Grip plastic holder, one of these extra-strong magnets holds up to 10 sheets of paper or 6 oz.