Stage 7 Fairy Tale World Educational Puzzle (6+ Years) | New Advanced Wooden Jigsaw for Kids | 7-Stage Willpower Training (1-7 Years) | 176-216 Piece Challenging Set | Includes Manual Achievement Stickers | Premium 5mm Plywood | Number Matrix on Back | Non-Toxic Material | Parent-Child STEM Toy | D

• 【Ultimate Challenge】 As the final stage of our 7-level system, this 176-216 piece fairy tale puzzle for kids 6+ years builds persistent focus and frustration tolerance through complex patterns, preparing children for primary school learning. • 【Imagination Boost】 Classic fairy tale scenes (castles, enchanted forests, etc.) enhance story comprehension and artistic appreciation while stimulating creative thinking during assembly. • 【Professional-Grade Material】 Made with 5mm moisture-resistant plywood (2x thicker than standard), warp-proof and crack-resistant. Each piece undergoes triple polishing, certified by EN71-3 with zero-formaldehyde German water-based paint. • 【Advanced Dual Learning】 Front side develops detail observation with intricate scenes, while back side features 1-100 number matrix for enhanced spatial reasoning and basic arithmetic skills. • 【Achievement Motivation System】 Includes full-color guidebook and achievement badge stickers, cultivating children's goal-setting ability and perseverance—the perfect cognitive development tool for school readiness.