Main And Cross Limited
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Focus Training Book Set
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Category: |
Hobby book |
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Price: |
HK$108.00 |
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Description
🧠 Designed for Ages 3-12: A Scientific Paper Mechanism for Deep Cognitive Training
Material Specifications
▸ Paper Thickness: 250g/m² gray cardboard
▸ Durability: >10,000 open/close tests
▸ Ink Adhesion: Passes ASTM F963-17 migration test
Training Guidelines
🔹 Recommended daily training duration: ≤ 25 minutes
🔹 Use a timer hourglass to cultivate a sense of time
🔹 Avoid direct sunlight to prevent paper deterioration
Make every page turn a precise operation in reshaping brain connections!
