Carson OcuLens Clip-On Eyeglass Magnifier 5x30mm and 8x20mm Set with Soft Pouch OL-57 is a convenient hands free magnifier that attaches with ease to most eyeglass frames. Once attached the interchangeable 5x and 8x lenses can be used to examine objects very close up without needing to hold the magnifier. Simply flip down and move the fully adjustable lens to get the best view possible when in use. When no longer needed simply flip up the magnifier and it will be out of the way. This magnifier is ideal for inspecting the finest of details.