The CEO Progressive Clear Reader should be ordered according to the power your reading power. That will be the power at the bottom of the lens. The middle of the lens will be slightly lower in power for computer work, and the power at the top will be about half the reading power for distance viewing. The frame comes in black or tortoise with a spring hinge for a flexible and comfortable fit. Frame Measurements: 5 1/4" x 1 5/8" (temple to temple x height of lens)