Laser Diffraction Kit, 1 Each

The Laser Diffraction Kit by United Scientific is a classroom optics kit for creating, viewing and measuring diffraction and interference patterns. It includes red and green Class 3R laser pointers, a mounting base, a momentary toggle clip, two double-slit slides, a five-slit single-slit slide and a 300 lines/mm diffraction grating, plus an activity guide. Physics teachers use it for double-slit and wavelength experiments. Four AAA batteries are required, not included.