This magnetic building block set is made of ABS plastic and magnetic materials, with a smooth, rounded surface free of burrs to prevent scratches. The magnets on the blocks are safe and durable and will not fall off easily. This magnetic toy can stimulate children's imagination, cultivate their ability to recognize colors and shapes, and train their logical thinking. The set includes 50 magnetic building blocks: 24 triangles (2.09 x 1.85 x 0.2 inches) and 26 squares (2.56 x 2.56 x 0.2 inches), as well as a creative booklet. Note: Please confirm the size before purchasing. Multiple ways to play: Children can use these magnetic building blocks to build two-dimensional shapes or three-dimensional geometric structures. These blocks are compatible with other building blocks of similar size. The variety of shapes and the fun help to cultivate children's patience. Suitable for children aged 3, 4, 5, 6, 7, and 8 years.