The lot of 32 Magformers Magnetic STEM Building Tiles Blocks includes 30 pieces in total, consisting of 2.5" squares and 2" triangles. The set offers a variety of shapes for creative building activities suitable for children aged 3 and up. Made of plastic, these magnetic pieces are part of the STEM product line, encouraging educational play focused on science, technology, engineering, and mathematics concepts. Ideal for sparking imagination and learning through hands-on construction, this set is themed around building and is a great addition to any child's toy collection.