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25x25x80mm Triangular Prism Optical Prisms Glass Physics Teaching Refracted Light Spectrum Rainbow Children Students
Specifications:
- Surface: 40/20
- Size: 25*25*80
- Shape: triangle
- Origin: CN(Origin)
- Certification: NONE
- Brand Name: lieve
- Free shipping
- 100 days returns
- Low prices
- 5 million products