Material: High-quality wooden board with clear texture and no odor. Base plate technology: fine carving no burrs smooth edges and high degree of coordination with building blocks. Manufacturered by Binory. Surface: environmentally friendly water-based paint bright color will not endanger children's health can not bite if the paint does not fall off. Fine workmanship quality assurance. Numeral alphabet early education puzzles to cultivate baby's hand-eye coordination ability.