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
Economical laser pointer, for many optical experiments, Lasers operate on a push-button switch, are housed in a rubberized aluminum pen-style case, and include a pocket clip, Also includes a proprietary clip that is designed to hold laser button during experiments, 6x0.5 inch