Features:*High Quality MateriaL: The toy is made of high quality material material, durable and not easy to break, can use for a long time.*Easy to Carry: The addition and subtraction math stamps is small and compact, it is portable and easy to carry.*2 in 1 Design: The math stamps is design with multiplication and division, with one stamps, can do 2 type training.*Great Learning Tool: The stamps can be adjusted flexibly, giving children a fun and meaningful gift! Make learning fun and exciting! Suitable for student practice, parent guidance, teacher teaching.*Random Math Problems: Number stamps can change different numbers, form math problems, and scroll smoothly, can develops children's logical calculation ability.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: ABSSize: 7.5*6*2.5cm