Our creative and educational Math Stamp can not only be used by teacher, but also for students. Its good ergonomic design, makes it easy to handle and easy to use. With its fine workmanship, it can ensure its practicality. You can change the math questions by turn the wheel, and this Math Roller Stamp some math addition and subtraction, multiplication and division questions quickly and conveniently. Features -Color:Assorted Color -Material:PP -Size:6.50X5.50X2.20cm/2.55X2.16X0.86in -Made from PP material with a comfortable touch, you can use it with peace of mind. -Using PP material, the students Math Roller Stamp can be supported for a long time. -Its good ergonomic design, makes it easy to handle and easy to use. With its fine workmanship, it can ensure its practicality. -Make students complete math practice unconsciously while playing, and students will love it and also love math. -This math stamps set creates joy and excitement for students. Your students will like it. Package list: 1 x Math Roller Stamp 1 x Bottle of Ink