• What You Get: 12 x Triangles, 18 x Squares, Guide Book (English) • Magnets are built into each side of the piece and when you move them closer to each other, the magnets will move around and connect without rebound • Not only are they flat surfaces, but they can instantly transform into 3D structures, so you can enjoy the simple and speedy transformation of magnets. When playing, you can develop the senses required by learning shapes = "ability to imagine shapes in the mind." • The color of the package design may vary depending on the production date. We also have black version, so please understand. WARNING: This item contains small magnets. If you swallow the magnets they adhere to the entire intestines and cause serious infections and death. If magnets are swallowed or inhaled, please immediately consult a doctor