Color Filters Acrylic, Set Of 5, 1 Each

The United Scientific® Color Filters Acrylic, Set Of 5 is a set of five acrylic color filters, each 2.5" x 2.5" x 1/8", with one each in red, orange, yellow, blue, and green. Teachers use the filters over flashlights and ray boxes, or stack them, to demonstrate selective transmission, subtractive color mixing, and how filtered light changes the apparent color of objects in physics and general science classes.