Set of 6 Easy Hold Discovery Set with lenses to change the color of everything children see in their environment. Includes giant magnifier and mirrors to give true and distorted reflections of the world around them. Can be stacked for color mixing and for use on a light panel. Set includes transparent acrylic red, blue, yellow, magnifying lens (with 3x magnification), two sided convex/concave mirror and plane mirror. Frame size 7.25" x 4.75" (insert size 3.25" diameter).