Educational toy that trains the brain with color combinations. I had my child play with it to develop their spatial reasoning and dexterity. Initially, they started by understanding the flat shapes while looking at the text. Later on, they tackled the most difficult challenge of building a pyramid shape, first by looking at the text, and then by training their spatial reasoning in their head without looking at the text. It's portable, so they worked on it even on the Shinkansen (bullet train) and airplanes. Math is now their strong subject for junior high school entrance exams. - Set includes: 109 colorful beads and a challenge book - Target age: 4 to 99 years old - Features: Brain training using color combinations and shapes - Storage case: Comes with a convenient carrying case Thank you for looking. The booklet shows some wear, but the case and the main body are in good condition. Both children and adults can enjoy it with concentration.