About this item

• 1. The numbers are adjustable, gently scroll, and quickly solve the problem, and math problems do not need high prices.
• 2. Rotate and adjust column types, you can adjust 10 different queue ways.
• 3.【Numerical Teaching】Addition and subtraction 2 model, free choice, interesting pictures, numbers 1-100.
• 4.【Reusable】Small and exquisite, easy to carry, add ink for reuse, products include 【Digital Teaching Stamp 2pc】【Contains 2 Bottles of Ink】.
• 5. Keep the kids busy and give themselves a little quiet time when they need it. Therefore, Roller Digital Teaching is a great gift for our children and even parents.