Educational toy with 12 wooden blocks and 58 ways to play. - Brand: KUNO - Model Name: 3D Cube - Target Age: 4-6 years old - Contents: 12 wooden blocks, original booklet with 58 types of activities - Colors: Red, wood grain - Packaging: Boxed Thank you for viewing. I used this for spatial recognition in block problems that appear on elementary school entrance exams. It was very helpful for studying at home while playing. Although the target age is 4-6 years old, it is an educational material that can also be applied to understanding volume and building block problems learned in elementary school. Using individual cubes, you can experience: - Assembling three-dimensional shapes - Counting blocks - Understanding length x width x height - The ability to imagine unseen parts You can experience content that children often struggle with in math. It can be widely used from the introduction of math for lower grade children, to supporting the understanding of volume and three-dimensional figures for upper grade children. Since children naturally develop their thinking skills while playing, it is also recommended for children who "are not good at block problems" or "cannot visualize shapes." There are no scribbles or stains, but I think there is a sense of use. Please refrain from purchasing if you are concerned about minor imperfections.