I purchased this to help with geometry for Seikei Elementary School and Kokuritsu Elementary School entrance exams, but I ended up not using it at all because I was too busy. The content is very good, and I think it's a wonderful educational toy that helps children develop a sense of geometry. I also purchased a task card book at the same time, which is also unused, but please understand that it has been kept at home. Features of Pattern Blocks 1. Develops a natural sense of geometry. Pattern blocks are designed to easily create beautiful figures. For example, each side has the same length, and all angles are multiples of 30°. As children create beautiful combinations, they develop a rich sense of geometry, such as "a trapezoid is a combination of triangles" and "a regular hexagon is a combination of trapezoids, rhombuses, and triangles." 2. Learn about numbers intuitively. Pattern blocks not only develop geometric skills but also enhance the understanding of numbers. For example, children can understand the concept that the number "6" can be divided into "3" and "2" through hands-on experience. Also, by counting by "3" (e.g., "3," "6," "9"), children can develop a foundation for multiplication and the multiplication table. 3. Unlocks children's individuality. Pattern blocks allow you to replace the same shape with different blocks. Even the same butterfly shape can be red, yellow, or colorful, as you like. Children can create shapes with their favorite colors. It can draw out not only mathematical skills such as geometry and numbers but also the ability to construct and create. [Product Contents] ▪︎ Pattern Blocks (Wooden, approximately 2.5cm per side) 6 types, 250 pieces Comes in a cube box for easy carrying Green equilateral triangles: 50 Yellow hexagons: 25 Orange squares: 25 Red trapezoids: 50 Wood-grain parallelograms: 50 Blue rhombuses: 50 Please be careful that small children do not accidentally swallow them. Since they are natural materials, color fading or splinters may occur when rubbed strongly. Do not use them for purposes other than their intended use, such as throwing them. We take great care in quality control, but if you find any defective products, we will replace them free of charge. Please contact our sales department. [Target Age] 3 years old and up [Trademark] "Pattern Blocks" is a registered trademark of Toyokan Publishing Co., Ltd. Registration No. 5509133