Kumon Zukei Cube Building Blocks Multi-colored wooden cube blocks with challenge cards Preparation for junior high school entrance exams Strengthens understanding of 3D figures in mathematics Dedicated stickers are attached to the challenge cards In addition to preparation from a young age, you can use the building blocks to visualize concepts while solving actual problems - Brand: KUMON - Color: Multi-colored - Material: Wood - Included items: Challenge cards, stickers - Shape: Cube - Target age: 3 years and up Thank you for viewing.