Roller Digital Teaching Stamp earrings a good toy to your

a good toy to your kids instead of playing computer games

Size：7*5cm

A4 or less size artwork

1 x USB Cable For Watch

Roller Digital Teaching Stamp earrings a good toy to yourIt's a unique gift idea. Feature: Adjustable numbers, gently scrolling, quick questions, no need to pay high prices for math questions Rotate and adjust the column type, can adjust 10 different queue methods Primary school students make one page a day to improve the speed and accuracy of oral arithmetic, cute and practical The imprint is clear, and it dries and does not fade after printing. Add printing oil, which can be used repeatedly, easy to use