1. Material: wooden 2. Size: 18x12x0.8cm 2. Weight: 90g 3. Double-sided cognitive puzzle, more abundant 4. Every pairing is an enhancement of hands-on ability 5. Balance contest, the higher the stack, the higher 6. Laser engraving with zero burr 7. Packing method: blister 8. HD heat transfer process 9. Applicable age: 36 months and above 10. Note: there is single picture puzzle, double-sided pattern
