A comprehensive and economical set of equipment for ray optics and color experiments using magnetic-backed components that can be used on the included whiteboard or any installed steel whiteboard. The whiteboard has a usable surface of 23" x 15.5" x 1" and has swiveling feet on two sides so that it can be set up in wide or tall format. The double-ended light box contains a 12V/20W halogen lamp powered by a wall-mount AC adapter and cooled by a built-in fan. One end carries a cylindrical lens and slots for mounting the three slit diaphragms for ray optics. The other end carries two adjustable mirrors and an open area for color mixing work using colored filters that fit into slots in the ray box. Contents: a 23" x 15.5" x 1" Whiteboard, one double-ended light box, one Convex Acrylic Lens, one Concase Acrylic Lens, one Semicircular Acrylic Lens, one Rectangular Acrylic Block, one Acrylic Right Angle Prism, one Acrylic Equilateral Prism, one 30 degree/60 degree/90 degree Prism, one Hollow Acrylic Rectangular Cell for Water Refraction, one Adjustable Concave/Convex Mirror, Matched Set of Seven Color Filters, Set of Seven Corresponding Colored Paddles, one 10" x 10" White Card Screen, one Card Protractor Circle, 4 Magnets to hold Protractor, Experiment Manual and a Storage Box with Molded Inserts. Dimensions: Optical parts set - 12" x 11" x 3.75", Whiteboard - 24" x 17.25" x 1" (including feet). Weight: Optical parts set - 3 lb, 7 oz, Whiteboard - 5 lb, 9 oz.