These superior quality, yet economical, prisms and lenses can be used to teach a wide variety of optical principles. Includes a sturdy wooden storage case and an activity guide.

Contents:
1  Double convex lens
1  Double concave lens
1  Semi-circular lens
1  Trapezoidal prism
1  Small right angle prism
1  Equilateral prism
1  Large right angle refraction prism

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information go to http://www.P65Warnings.ca.gov