- Double head design
- Subtraction above, addition below, multi-functional stamps help children practice mathematical logic skills.
- Rotary Design
- The subject can be changed at any time. Adjustable numbers, gently rolling, can efficiently and quickly print out math practice questions within 100.
- Recyclable
- The seal is clear and not smudged, no ink pad is required. You can use it with ink.
- Specifications:
- - Material: plastic
- - Size: As picture show
- - Color: blue or pink
- Package Include:
- a blue double-headed addition and subtraction math stamp
- a bottle of ink