This style of computer readers were made to block the blue rays that cause eyestrain for so many people. Most of us spend many hours on electronic devices that it is such good news that there is now a computer reader that filters these blue rays. The frame of this style comes in brown, clear or black. The frame has a spring hinge for a comfortable and flexible fit. Frame Measurements: 5 1/4" x 1 1/4" (temple to temple x height of lens)