An oversized set of 6 lenses and prisms designed for mounting on a magnetic chalk or marker board. Lenses are about 8" long, so your optics experiments would be clearly visible from every part of the classroom. Each piece in the set has a pre-attached magnetic backing. An activity guide is also included. Set comes in a sturdy wooden storage case.

**Please note: Laser ray box not included.**

Contents:
1  Semi-circular lens
1  Equilateral prism, 75mm sides
1  Double convex lens
1  Double concave lens
1  Single convex lens
1  Single concave lens