1Playing this toy with your child can enhance parent-child interaction and communication. 2Made from environmentally-friendly wood material, it is non-toxic and safe, suitable for children to play. 3Improve your child's intellectual development, it is a nice birthday gift for your children, they will like it. 4Simulation clock, develop your child's cognitive ability, logical thinking ability and hands-on ability. 5Simple addition and subtraction of arithmetic to develop the baby's computing ability, enlighten the child's mathematical thinking. 6Double-sided total of 100 English reference pictures, difficulty is increased and fun is doubled.