Enhance your child's math skills with our innovative Math Problem Roller Stamps. This set includes four different stamps, each focusing on addition and multiplication. Ideal for teachers and parents, these stamps provide a creative and interactive method for children to practice math. the stamp across a sheet of paper to create a variety of math problems instantly. Features -Color:Assorted Color -Material:Plastic -Size:4.80X4.50X3.00cm/1.89X1.77X1.18in -Clear prints: the stamp's light sensitive technology ensures clear and precise prints that do not smudge, maintaining readability over time -Interactive learning: the adjustable feature allows for question generation, keeping children engaged and making math practice more enjoyable -Effortless math practice: simply roll the stamp to generate new math problems, providing an instant and fun way to practice arithmetic skills -Userfriendly design: the smooth rolling action ensures a seamless experience, making it easy for kids to use and enjoy their math practice -Portable convenience: its compact size allows it to be easily carried in a stationery bag or pocket, making it a ideal travel companion for learning Package list: 4 sets x math stamps with 4 ink