A durable wooden box houses (14″x12″x2″) six different sizes and styles of optical lenses for classroom demonstrations. The interior of the box is foam-lined with individual slots cut out to help protect the lenses from being damaged.

Set comes with five 8” long lenses and one 3” prism. Lenses are made of acrylic and coated with a magnetic sheet on one side for conveniently attaching to a whiteboard or other magnetic surfaces. Lens types include Plano-Concave, Biconcave, Biconvex Lens, Plano-Convex Lens, Semi-Circular, and equilateral prism.

An instruction booklet with sample activities is included.