1、Colorful beads will appeal to your baby's interest, thus exercising your baby's hand-eye coordination and understanding of color. 2、You can guide the baby to compare, count and calculate. 3、The baby can learn the number, dial one, and count the number of beads of each color. Available to learn the number within 50. 4、Learn to add or subtract. Let the baby know the mathematical formula on the back panel and the usage of the +, -, = symbols. Use the beads for addition and subtraction. 5、Know the unit. Teach the baby to recognize the Chinese characters on the base, and use the beads to explain the relationship between the units, and then carry out a slightly complicated abdication calculation. Features: 1. Colorful beads will appeal to your baby's interest, thus exercising your baby's hand-eye coordination and understanding of color. 2. You can guide the baby to compare, count and calculate. 3. The baby can learn the number, dial one, and count the number of beads of each color. Available to learn the number within 50. 4. Learn to add or subtract. Let the baby know the mathematical formula on the back panel and the usage of the +, -, = symbols. Use the beads for addition and subtraction. 5. Know the unit. Teach the baby to recognize the Chinese characters on the base, and use the beads to explain the relationship between the units, and then carry out a slightly complicated abdication calculation. Specifications: Model: Wooden Abacus Calculation Material: High quality wood + environmental safety paint Size: Approx. 30*13*4cm/11.81*5.12*1.57inch Suitable for: Kids above 18 months Package List: 1 * Abacus