Ray Box, Includes: (1) Ray Box, (2) Meter Of Flex, (2) 4mm Plugs, (1) 12V - 24W B15 Bulb, (1) Bulb Holder, (1) Slit Plate, (2) Aluminium Blanking Plates, Traditional Ray Box Has Three Openings, Two Of Which Can Be Used Simultaneously By Two Sets Of Pupils
Laser Diffraction Kit, lets students create, view, and measure diffraction and interference patterns, kit includes two laser pointers-red and green - along with a convenient mounting base and a slide set of diffraction objects