The magic digital charm: 6+4 is as high as 7+3, and 7+1+1 is as high as 5+3+1! Different digital with the same sum stack up to the same height! Recognize the calculation relationship between digital through stacking, cultivate children's calculation ability from childhood! Safety and environmental protection: Selection of high-quality wood, with environmentally friendly water-based paint, superb craftsmanship polishing, smooth edges and corners without burrs, through the testing and certification, suitable for babies over 3 year old to play, safety is guaranteed! Bright colors: carefully designed shape, with bright colors, make building easier, help children to improve self-confidence and aesthetics, exercise the child's color cognitive ability, the bottom of each digital contains the corresponding points, help the baby more clearly understand the digital s and points of the corresponding relationship between the 15 cards included, front and back of a total of 30 different levels of difficulty decent, 1-5 stars, five levels of difficulty to choose from! Preschool Learning Toys - Wooden digital blocks not only keep your child focused and entertained for hours, but also help develop hand-eye coordination, digital recognition, counting skills and spatial stacking relationships. Exercise your child's logical thinking ability, fully explore your child's creative potential, let your child give full play to his or her imagination, and cultivate his or her creativity. GREAT TOYS FOR KIDS: Perfect birthday, back-to-school, holiday and Christmas gifts for boys and girls ages 3 to 10. These stacking toys are sized for small hands. Stacking Building Blocks