The possibilities of shapes and designs are endless with the SPEKS magnetic building set. Each of the 512 nickel balls contain a low-powered, rare-earth magnet. Perfect for the creative crafter. Mini balls create a 1 inch cube. Ages 14+
WARNING: Keep Away From All Children!
Do not put near or in nose or mouth. Swallowed magnets can pinch and stick together across intestines causing serious injury or death. Seek immediate medical attention if magnets are swallowed or ingested.