Caratteristiche e benefici
- Developed by Dr. Nobuyuki Yoshigahara, the world's leading puzzle designer
- Highest difficulty level (6 out of 6)
- Inspired by adult logic and designed to challenge your mind and hands
- Simple yet profound puzzle
- Suitable for ages 6 and above
- Size: 75 × 119 × 45 (mm), Weight: 142 g