Made of high-quality wooden materials, the surface is smooth and does not hurt your hands. 0-9 number building game, let children learn while playing. 20 double-sided cognitive cards to cultivate children's basic mathematical skills. It can stimulate children's imagination and creativity, and exercise their hand-eye coordination. Perfect early education toy for children aged 4-6. Specification: Material:Wooden Size Chart: (LxWxH) 23.2x14x1.2cm/9.13x5.51x0.47inch Package Includes: 1 Piece Digital Learning Board 10 Pieces Digital Card 20 Pieces Double-sided Computing Card Note: 1. This is not infant toy , please take away from kids to avoid eating. 2. Please allow slightly error due to manual measurement. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 4. Wish you a wonderful shopping!