1. Jigsaw puzzles can effectively alleviate the stressful working state and let the spirit rest 2. Laser cutting process, round and burr-free, and will not hurt your hands 3. Features: laser cutting, environmentally friendly wood, bright colors 4. Material: wooden 5. Ability training: spatial imagination, logical thinking, concentration 6. Applicable age: over 14 years old 7. Maintenance items: pay attention to moisture, keep dry, and do not touch water and fire sources
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