Optical Block Lenses 3pk

This set of lenses can be used for studies on the reflection and refraction of light.

• Made from crystal glass, the bottom surfaces are tinted making it ideal for observing light path.

• Semicircle lens 60 x 15mm

• Trapezoid lens 75 x 40 x 15mm

• Convex lens 60 x 20 x 15mm.