PRASEE DIGITAL MATH TEACHING ROLLER STAMP  (POCKET, BLACK)

The Roller Digital Teaching Stamp is small and exquisite, easy to carry, and can add ink for reuse. Small and exquisite, easy to carry, can add ink for reuse. The imprint is clear, and it dries and does not fade after printing. Product includes digital teaching stamp. Keep the kids busy and get yourself a moment of quiet when they need it. So, it's a great gift for our kids and even for parents. Rotate and adjust the column type, can adjust 10 different queue methods. Satisfy all addition/subtraction/Multiplication/Divide numbers from 1-100. Develop children's logical calculation ability. Roller Digital Teaching Stamps in 100 Math Teaching Practice Questions.