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Egyptian Pyramids Glass Optical Prism 50mm Crystal Photography Triangle Light Guide Science Home Decoration Teaching
Specifications:
- Hign-concerned Chemical: None
- Origin: Mainland China
- Surface: 60/40
- Size: 40/50/60/80/100mm
- Shape: Irregular Shape
- Model Number: Irregular shape prism
- Material: K9
- Flatness: ^/4
- Dimension Tolerance: 0.01-0.1
- Angle Tolerance: 3'
- Free shipping
- 100 days returns
- Low prices
- 5 million products