These tiny gold-coated cubes are another great example of our neodymium magnets. Use them to teach about magnetism, or pass them around to students. - they'll be amazed something so small can be so powerful! Package of 10 magnetic cubes.Note: All Rare Earth magnets, such as neodymium magnets, are made of a ceramic and can be brittle. They are extremely strong magnetically must be handled with caution to avoid damage to the magnets and/or injury. Fingers can be pinched between attracting magnets and magnets can chip or break if allowed to 'jump' at an attracting surface or another magnet. Adult supervision is required.