810 multi-functional Magnetic double-sided drawing board is a product made of solid wood, which exercises children's drawing ability, digital computing, clock cognition and enhances brain development. 810 multi-functional Magnetic double-sided whiteboard digital arithmetic potential development is to let children master the relationship between addition and subtraction, multiplication and division, and can use this relationship to carry out hydrochloric acid, and skillfully carry out settlement in the calculation process, the product size is 55.5 * cm, which is the first choice for giving children gifts. Welcome new and old customers customization as request.