We think you'll find our magnets especially "attractive". With a magnetic pole on each end, the standard Alnico cow magnet is perfect for a 3-D demonstration of magnetic fields. Strong and safe, high-grade ceramic magnets have been used for years for experimentation, projects, or simply to hold papers to magnetic chalk boards. When tossed in the air, Buzzing Stunt Magnets produce a clattering sound, much like a Cicada or high voltage sparking. The Floating Ring Magnet Set is a great demonstration of magnetic fields - the colorful magnets float effortlessly above each other! Each Magnetic Wand contains a permanent magnet molded into the end of a brightly colored plastic handle which is durable and easy to clean. Alnico Magnets are painted red with a white dot to indicate the north pole and are supplied in pairs with keepers.