in 1 Addition and Subtraction Teaching Stamps for Kids，Double-Head Roller Digital Teaching Stamp Within 100 Teaching Math Practice Questions for Preschool Kindergarten Home School Supplies (Pink)

About This Product :

• 2 in 1 Digital Teaching StampAddition and subtraction math stamp, addition and subtraction within 100, can be adjusted flexibly, giving children a fun and meaningful gift! Make learning fun and exciting! Suitable for student practice, parent guidance, teacher teaching.
• Interesting School Supplies:The set includes 1 Pink Double-headed addition and subtraction math stamp, and 1 bottles ink.
• Rotary Adjustable StampNumber stamps can change different numbers, form math problems, and scroll smoothly. It supports efficient and fast printing of all addition/subtraction math problems from 1-100, and develops children”s logical calculation ability.
• Easy To CarryThis addition and subtraction math stamp is small and exquisite, can be reused many times with ink, the printing is clear, and it will not fade after drying.
• Strong And SturdyThe sturdy ABS plastic components and housing are durable, open the side cover when replenishing ink, and drop 2-3 drops at a time, easy to operate. The math problem can be changed by twisting the roller lightly, and the math problem is random.