Price reduced due to being a junk item. It's only in poor cosmetic condition, but there are no issues with its use. Please refrain from purchasing if you are concerned. No claims and no returns accepted. As you can see in the photos, there are small bumps overall, and there is a tear in the fifth photo. Educational toy for learning arithmetic and the concept of numbers by "seeing" and "touching" Features ・ABS resin case. ・A divider in the center allows for an intuitive understanding of number groupings and the composition of 10. ・The golden ratio is engraved on the back of the lid, and the size is also based on the golden ratio. You can intuitively and intimately feel the mathematical beauty. ・There are indentations for the placement of the marbles, which fit perfectly. ・It comes with a sliding lid to prevent loss of marbles. Contents ・Nummer Kasten body ・10 blue marbles Size (approximate) Width: approx. 15cm, Height: approx. 10cm, Depth: approx. 3cm Recommended points ・Popular as Montessori education and STEAM materials ・"Number art" experience that children and adults can enjoy ・Beautiful design with the golden ratio, making it decorative Type...Numbers Popular keywords...Montessori Nummer Kasten Educational toy Type...Nature/Science Type...Wood Popular keywords...Shichida method