• 【Magnetic Design with Strong Adhesion】Upgraded magnetic attachment ensures puzzle pieces stay securely in place and won't easily fall off, even when positioned vertically for standing puzzles.
• 【Portable Book-Style Design】Innovative foldable book structure with clip closure - when closed it's a compact book, when opened it reveals challenge pages on the left and magnetic play board on the right for easy storage and portability.
• 【Rich Content Library】Includes 96 puzzle challenges with accompanying instruction manual, progressing from easy to difficult levels to systematically develop imagination and concentration skills.
• 【Multi-Dimensional Learning】Develops essential skills including spatial thinking, creativity, mathematical reasoning, color recognition, logical problem-solving, and concentration through engaging tangram activities.
• 【Child-Safe Construction】Smooth surface with rounded corners and no burrs, featuring large particle design to prevent choking hazards while ensuring safe handling for children.
• 【Educational Verification System】Double-sided challenge cards feature black silhouette puzzles on one side and colorful solution guides on the reverse for self-checking and learning reinforcement.

Specifications:

• Material: Paper + Wood
• Book Size (Open): 37 cm × 22 cm
• Weight: 0.15 kg
• Puzzle Pieces: 7 pieces total (5 triangles, 1 square, 1 parallelogram)
• Large Triangle: 9.5 cm × 6.8 cm (2 pieces)
• Medium Triangle: 6.8 cm × 4.8 cm (1 piece)
• Small Triangle: 4.8 cm × 3.5 cm (2 pieces)
• Square: 3.5 cm × 3.5 cm (1 piece)
• Parallelogram: 4.8 cm × 3.5 cm (1 piece)