These high-grade ceramic magnets have been used for years for experimentation, projects, or simply to hold papers to magnetic chalk boards. They are strong and safe. The large bar magnets are great for picking up items such as paper clips or nails. All of our ceramic magnets are great for collecting the magnetite (black iron mineral) out of beach sand. (Hint: Place your magnet in a plastic zip-lock bag to avoid the mess of cleaning the magnetite off your magnet.)
Like our bar magnets, the ceramic ring magnets are perfect for a variety of experiments, projects, or simply holding papers to magnetic chalk boards. These rings fit perfectly over a standard pencil and are perfect for demonstrating magnetic repulsion.