KUMON PUBLISHING Logical Ball Slide Slide Puzzle Brain Training Logical Thinking Skills ST Acquisition 5 Years Old and Up KUMON LB-10

Move the ball to find the answer. Develop your logical thinking skills with slide puzzles. You will solve 100 problems step by step, from easy problems to extremely difficult problems. You can naturally develop your concentration. [Set contents] Body x 1, balls x 30 (red, chiro, light blue, orange, black, yellow, green, purple, pink, gray 3 each), problem cards x 50 (printed on both sides), explanation book x 1 part [Target age] 5 years old or older