Roller Digital Teaching Stamp, Addition Seal Arithmetic Artifact, Math Roller Stamp with Ink

DIGITAL TEACHING STAMP ROLLER: Our math stamps come in 4 styles (addition, subtraction, multiplication and division), just scroll gently, math problems will appear in front of you, it can print out math problems within 100 efficiently and quickly. ADJUSTABLE DESIGN: The Math Practice Number Rolling Stamp has 10 different ways to queue, and you can change the calculation questions with just the turn of a button. Say goodbye to handwritten addition and subtraction math problems, and use the seal to save you more time. PORTABLE SIZE: The Roller Digital Teaching Stamp is small and exquisite, and comes with a storage box for easy carry. When the ink is used up, you can fill it on the roller side. REUSABLE ENVIRONMENTALLY FRIENDLY MATERIALS: The math roller stamp is made of durable PVC material and uses the highest quality cuts to ensure a clear impression every time. Dries quickly without fading. With oil-based ink, no acid or lignin, kid-safe, perfect for school/home use. MAKE LEARNING