Digital Teaching Stamp Roller: Adjustable numbers, gently scrolling, Can efficiently and quickly print out less than 100 math problems. A fun and meaningful gift for your child or your friend's child! Reusable: Small and exquisite, easy to carry, add ink for repeated use. Product includes digital teaching stamp,1 bottle of ink. Math Skill Dev..

About this item In The Box  Package includes 1 pcs digital teaching stamp roller, it can guide kids or children to do mathematical calculation quickly through playing this stamp. Number Rolling Stamp Maths - The numbers of digital teaching stamp can be adjusted freely, you just need to gently scroll, it will quickly print..