Roller Digital Teaching Stamp. Are you looking for ways to make your child love learning more? Our teaching stamp helps stimulate children's interest in mathematics. Simply roll the stamp to quickly print various math problems.Save Your Time: Prepare math exercises efficiently at home. The ink dries quickly, allowing for fast preparation. Ideal for primary school students to practice daily and improve mental arithmetic speed and accuracy.Adjustable Design: Rotate and adjust the columns to create 10 different problem types. Easily change calculations with a simple turn, supporting ongoing math skill development.Reusable Teaching Tool: Compact and portable design. Refillable with ink for repeated use. Provides clear, smudge-resistant prints that dry quickly and remain legible. Includes 4 stamp styles (Addition, Subtraction, Multiplication, Division) and 4 ink bottles.Ideal Learning Gift: Fun and engaging for children. Great for use by kids, parents, and teachers in educational settings. A practical and thoughtful gift to support learning.Please check product dimensions carefully to ensure suitability. Detailed specifications and features are provided in the title and product information.We want you to be fully satisfied with your purchase. If you have any questions, feel free to . We're here to help.Thank you for choosing our product. We hope you enjoy it. Products from Chunchuan's store