This set of toys makes learning more interesting and can help children develop memory skills, spelling and improve word recognition skills and learn math addition, subtraction, multiplication and division. Kids can learn all kinds of knowledge while playing games. Features -Color: Blue. - Material: ABS. - Size: About 18.00X16.00X4.00cm/ 7.07X6.29X1.57in. - These toys allow children to learn simple arithmetic, including addition, subtraction, multiplication, and division. - Unique and interesting learning methods can stimulate children's creativity and imagination, and improve their logical thinking ability. - This set of toys can help children develop good study habits. - Attractive toys easily attract children's attention and satisfy children's curiosity.