These three replacement magnets will provide extra stabilization for your projects when used in conjunction with the MISTI or Mini MISTI magnetic bases. Please note: Neodymium magnets are very brittle and very strong magnetically. Therefore, it is crucial to handle these magnets with extreme care to avoid personal injury and damage to the magnets. Fingers can be severely pinched between attracting magnets. Magnets can chip if allowed to “jump at” an attracting object. Because of their brittle nature, magnets should be handled with care. Magnets will not be warrantied, replaced, returned, or exchanged.