Dimension : size : Approx 23 x 15 x 2.2 cm / 9.06 x 5.90 x 0.87 inch(L x W x T). Material : made of high standard wood with environment-friendly paint finish Intelligence Toy Set : Kids can recognize numbers and understand the relationship between number and quantity with this toy set Interaction : Great for enhance mathematic skills in a creative way. Time to teach, time to show your child how valuable they are by evolving with them in Learning with fun games Fun Learning : It makes learning fun, enriches the child imagination, stimulates children's logical thinking, improves children hand eye coordination and learning ability Suitable : It is suitable for home preschools and kindergarten.You can teach baby addition, subtraction, division, multiplication