Weloille Addition And Subtraction Teaching Students Within 100 Addition And Subtraction Practice Questions Rolling Seal（5ml）

Weloille Addition And Subtraction Teaching Students Within 100 Addition And Subtraction Practice Questions Rolling Seal（5ml）
feature:
Addition and subtraction 2 styles, free to choose.
Roller design, combined adjustment.
Add ink, reusable.
Simply the button to change the question
Give practice questions efficiently and quickly, without smudging or fading.
random questions
Small and exquisite, easy to carry.
Product parameters:
material: plastic
Size: 4.4x3x4.8cm
Printing speed: 2x0.4cm
Model: Addition (blue)
Subtraction (pink)
Packing list:
1 x 1 Addition and Subtraction Arithmetic Artifact (Includes Ink 5ml)