Have fun building incredible structures with SmartMax! SmartMax enables young children to explore magnetism safely, with strong, oversized pieces that are specifically designed for handling by young kids. Magnets are incredibly strong, able to carry up to 60 times their own weight! Details:23 piecesPromotes STEM skills, imagination and creativitycombined with all existing Smartmax sets (sold separately) For ages 1 and up Contents:12 medium bars6 long bars4 curved bars8 metal balls guide to build