Durable Printing Ink School Supplies Practice Tool Arithmetic Exercises Reusable Portable

Description:

- DIGITAL TEACHING STAMP: Fun teaching tool to make learning more fun for kids.

- SIMPLE : The rolling math problems appear instantly, the is simple, and the speed is very fast.

- ALGORITHM QUESTIONS : Take your math scores to the next level.

- REPEATED USE: It can be used repeatedly, with continuous practice and quick mastery.

- DRY FAST: Markers are durable and dry fast.

Specification:

- Material:ABS Size Chart: Size:6cmx5cmx7cm/2.36inchx1.97inchx2.76inch Capacity:5ml

Package Includes: 1 Printing Oil

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