Roller Practice Number Stamp - Addition Tool For Kids

Roller Practice Number Stamp - Addition Tool For Kids

• One addition stamp one subtraction stamp, 1 bottles of ink.
• The math stamp set as fun as toys, makes learning fun and exciting, increase children's interest in learning  suitable for students to practice, parent guidance, teacher teaching.
• Easy to operate the math questions can appear in front of you by scrolling the stamp, which can be adjusted, and the questions can be changed by gently twisting the button, and the questions will be randomly selected.
• Photosensitive process, clear stamping, Print thousands of impressions without losing the original quality,Strong ABS plastic components and housing.
• Durable Equipped with 1 Free refills ink, open the oil cap and drop 5-6 drops at once.
• Size: 4.4 * 3 cm.
• Package included: 1 * ink, 1* storage box, 1* stamp.