1-Math Roller Stamp can develop your child/student’s logical calculation ability.
2- Rotate and adjust the column, and 10 different queuing methods can be adjusted.
3- The Roller Digital Teaching Stamp is small and exquisite, and comes with a storage box for easy carry.
4- You can quickly prepare math problems for your kids at home, just roll the stamp, you can quickly print math problems, and it dries quickly, convenient and practical.