Still manually writing arithmetic questions for your child?
Roll gently smart math roller and 100s of math problems will appear immediately.
Cute and practical.
Advantages:
- Addition, subtraction and multiplication questions to choose from.
- Easy roller design with a gear to adjust question sequence.
- Ink comes with the box, which can be reused again!
- Efficient and quickly gives you 100s of practice questions, no smudge, no fading!
- Rotate to adjust 10 different question sequence.
- Small and exquisite, easy to carry.
Specification:
- Weight: 120g
- Material: Plastic
- Choices: Addition, Subtraction and Multiplication
- Colors: Blue and Pink
- Size: 4.4*3*4.8cm/1.7*1.2*1.9in
- Package Contents: 1x Arithmetic Artifact (Contains seal ink)
