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Biconvex Lens 3cm Large Self-made Bottle Cap Mobile Phone Macro Lens Student Physics Experiment Concave-convex Lens
Specifications:
- Usage: Optical
- Structure: Double Convex
- Shape: Spherical
- Model Number: Convex lens
- Material: K9
- Material: Glass
- Focal Length: 50mm
- Edge Thickness: mm
- Diameter: 30mm
- Coating: Yes
- Center Thickness: mm
- Free shipping
- Free returns
- Low prices
- 5 million products