Ages 4-9. Observe on a grand scale with our extra-large magnifiers、 sized perfectly for small hands. Supports life science explorations as children observe plants、 animals and insects. Features built-in stands for hands-free viewing. Includes magnifiers in 6 different colors. Plastic lenses measure 4.5 inches in diameter each and offer 4.5x magnification. Each plastic magnifier measures 8 inchesL. Grades PreK .