Ameican Educational
Double Concave Lenses Set of 50 pcs : 38 mmd X 15 cmfl -
Double concave lenses have two inwardly curved surfaces a negative focal length and are often Superior quality lenses are useful for teaching a variety of optical principles.. Size - 38 mm. D X 15 cm. fl.
Details:
- Size - 38 mm. D X 15 cm. fl.
- Package Quantity: 50
- Excellent Quality
- Great Gift Idea
- Satisfaction Ensured.
