4 in 1 Math Roller Stamp Set, Addition,Subtraction,Multiplication & Fill-in-The-Blank Practice Tool,Roller Digital Teaching Stamp with Ink, Reusable Calculation Stamp for Classroom Home (Blue, 1PC)

• 4-in-1 Digital Teaching Stamp Roller: Including multiplication practice, addition practice, learn division, math subtraction. can efficiently and quickly print out math practice questions within 100.
• Easy to Use: Adjusted Roller, the numbers of digital teaching stamp can be adjusted freely, you just need to gently scroll, will quickly print out less than 100 math problems.
• Safe Material The math rolling stamp is made of durable PVC material and uses the highest quality cuts to ensure a clear imprint every time. Dries quickly without fading. With oil based ink, child safe.
• Easy to carry: It can be put into the stationery bag or pocket at any time. The roller type digital teaching chapter frees parents' hands by printing different addition and subtraction formulas on the paper.
• Perfect Gift: 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.

Product description Packing list:1*4 In 1 Math Roller Stamp Set, Safety Warning NO