TONOR 72 PCS Magnetic Building Blocks Construction Stacking Set Development Toy With this building blocks set, children can build 3D ferries wheel by themselves. This toy promotes children development well. 72 pieces in total(random color), 12 triangles, 24 squares, 2 hexagons, 26 yellow blocks, 2 Y stand, 1 chassis, 1 connecting shaft, 2 hexagons stands, 2 screws. The parts of toy set were made of high quality ABS plastic and using strong permanent magnet. Designed with arc-shaped so children will never get hurt. Attractive Colorful Blocks help to promote childrens thinking and problem solving ability, imagination and creativity and manipulative ability. Warranty, we provide 12 months warranty and 2 months hassle-free return policy.