Diffraction Grating Slide - Double Axis 13,500 line/in - Excellent for demonstrating the spectrum from various light sources

Diffraction Grating Slide - Double Axis 13,500 line/in - Excellent for demonstrating the spectrum from various light sources

Diffraction Grating Slide-Linear 1000 Lines/mm 2x2"-Pack of 10

Rainbow Symphony Diffraction Grating Slides, Linear, 500 Line/Millimeters, Made in USA, Package of 10