This product is an educational toy called "Das Nikitin Material. N2 Uniwürfel (Nikitin Material N2 Unicubes)". By combining the 7 colored cube blocks, you can create specified patterns and three-dimensional shapes. It aims to develop spatial awareness, creativity, and problem-solving skills. The target age is from 3 years old, but it's a puzzle with a high level of difficulty that adults can also enjoy. Several pattern collections (examples) are included, allowing you to challenge various tasks. The box shows some signs of use. The contents are fine. Nikitin, building blocks, nikitin genuine, educational toy, cube puzzle, children, education, building blocks With booklet, boxed Rare item, difficult to obtain #Nikitin #BuildingBlocks #BuildingBlocks #Education #EducationalToy