Smart Digital Math Teaching Roller Stamp Set of 4

Still manually writing addition and subtraction questions for your child? 

Do you want your Hummel to practice arithmetic extra? From now on quickly prepare maths for your children.

Fill the stamp with ink, roll the stamp over a blank sheet and conjure up a row of math on the paper in seconds, ready for your little one to solve.

Features:

Digital teaching seal: Addition and subtraction math seal, addition and subtraction within 100, can be adjusted flexibly.

Math Skill Development: Rotate and adjust the column type, can adjust 10 different queue methods. Satisfy all addition/subtraction numbers from 1-100. Develop children's logical calculation ability.

Easy to carry: The Roller Digital Teaching Stamp is small and exquisite, and comes with a storage box for easy carry. When the ink is used up, you can fill it on the roller side.

Good Quality: photosensitive process, clear stamping, Print thousands of impressions without losing the original quality, Strong ABS plastic components and housing

Learning Gift: An interesting learning gift, which helps children to interact with each other and increases their learning fun.

Specifications:

Material: Non-toxic plastic
Size: 12x8x10cm
Age: 3+

Package Includes:

1 x Smart Digital Math Teaching Roller Stamp Set