The Jack and Jill style looks great on boys and girls alike. The frame is sized for narrow faces, but the lenses are just as effective in blocking blue rays as the adult sizes. Young kids often spend hours on the computer for school and additional hours on phones and tablets. Their eyes get strained and tired from the blue rays. The frame comes in clear, tan and black. The frame has a spring hinge for a comfortable and flexible fit. Frame Measurements: 4 5/8" x 1 3/8" (temple to temple x height of lens)