1. Material: paper
2. Puzzle size: 52.8x52.8cm
3. Function: good gifts, convenient storage, thumbnails included
4. Examining aviation technology and understanding human wisdom
5. From planet to galaxy, logical thinking is a big challenge
6. 150 puzzles, a big test of concentration
7. Applicable age: 5 years old and above
8. Packing size: 22x22x12cm
9. Packing weight: 625g
10. Matters needing attention: avoid contact with water, wipe with dry cloth, do not get damp, avoid exposure to the sun and floor heating