These unique child–size glasses feature lenses that slide in and out of the top frame so children can mix colors and learn all about color while they do! Take a look! Features 8 easy–to–change lenses—2 each of red, yellow and blue and distortion lenses that let you see the world like a bug. Teaches primary colors as well as mixing to make secondary colors by combining up to 2 lenses per side. Allows additional instruction and kaleidoscopic fun when you use the lenses on their own. Includes color–mixing chart. Durable plastic glasses are sized just right for children, and wipe clean with a damp cloth. Grades PreK +.