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
Graduated Cylinders, Material: Borosilicate glass with Plastic base, Volume: 50 ml, Graduation Interval: 1 ml, Tolerance: +/- 0.5ml, Double metric scale, calibrated to contain, with pour spouts. All cylinders come with bumper guards.