Kumon Publishing (KUMON PUBLISHING) Unfolding Diagram Puzzle TP-10 Educational Toy for Ages 6 and Up

Build your understanding of three-dimensional shapes with this puzzle, which requires you to consider the unfolding diagram before assembling. This is a "2D⇔3D" puzzle in which you combine seven types of pieces, whose faces are connected by hinges, to create an unfolding diagram, which is then turned into a 3D object. There are 200 puzzle questions in total, ranging from easy to extremely difficult. This is a 3D puzzle that can be enjoyed by children and adults alike. Recommended ages: 6 years and up Set contents: Unfolding diagram pieces: 24 pieces in total (4 yellow, 3 blue, 3 green, 2 purple, 2 pink, 2 orange, 4 white), removal stick: 1, problem book: 1