Description:

【Adjustable Numbers】: Digital teaching stamp roller rolls numbers, which can efficiently and quickly print out math practice questions within 1000, easy to operate and very fast.
【Clear Print】: This math roller stamp comes with premium printing ink which is suitable for most paper, stamping is clear and the marks are durable.
【Quick Addition and Subtraction】: Just need a sheet paper, roll the stamp, and you can quickly print math problems, perfect for students to practice parent guidance, and teacher teaching.
【Lightweight and Practical】: The addition and subtraction roller stamp is small and exquisite to carry.
【Perfect Gift for Children】: The math practice tool is a unique gift for children to improve their math skills, and develop kids' logical calculation ability.

Specification:

Material: ABS

Size Chart:

5cmx7.8cmx3cm/1.97inchx3.07inchx1.18inch

Package Includes:

1 Math Roller Stamp

1 Carrying Box

1 Printing Ink

Note:

Please allow slightly errors due to manual measurement and different monitors.