Complete Light Box.

Here's a complete optics kit in one nifty package. Study color mixing, reflection, prisms, parallel and convergent rays and more - with better equipment than that used by the scientists of old! Molded plastic housing is durable and features magnets in the bottom to allow for use on the blackboard. Kit includes: color filters, mirrors, prisms, ray cards, color gels, replaceable bulb and instructions. Requires 12 volt power supply (615-4120) not included.