1. ABS plastic, tasteless, non-toxic, and safe
2. Exquisite packaging, clear classification, convenient storage
3. Multi-model building, multi-dimensional thinking, exercise children's creative thinking
4. Ability training: imagination, space, cognition, creativity
5. Good compatibility, smooth edges and corners without burrs
6. Moderate tightness, no drop, learning and playing, easy to understand
7. Variety of shapes, free assembling
8. Material: plastic
9. Applicable age: 4 years old and above