The SmartMax basics set has all you need to build exciting structures and learn about magnetic principles. The carefully designed giant magnetic bars and balls offer an array of exploring and connecting possibilities that will stimulate the creativity of growing young minds. This set contains a guide which shows the different ways of play for the following age ranges. Toddlers 1-2: connecting bars and ball and making simple 2D shapes. Infants 2-4: Making more complex 2D shapes and easy 3D structures. Kids 4+: Learning to build stable 3D constructions.