ROLLER DIGITAL TEACHING STAMP, ADDITION AND SUBTRACTION ROLLER STAMP
pack of 2
SAVE TIME: Easy to operate, by rolling the stamps, the math questions can appear in front of you, adjustable, and can be changed by gently twisting the button.
ADJUSTABLE DESIGN: Smart Math Roller Stamp has 10 different ways to queue, and you can change the calculation questions with just the turn of a button, save you more time
PORTABLE SIZE: The Roller Digital Teaching Stamp is small and exquisite, and comes with a storage box. When the ink is used up, you can fill it on the roller side.
MAKE LEARNING MATH FUN: Math Roller Stamp can develop your child/student's logical calculation ability and improve the speed and accuracy of oral calculation. As the perfect learning toy, "YOUBLEK" teaching stamps make great gifts for Birthdays, Christmas, Halloween, Thanksgiving and New Years