AS01 is a 3-in-1 LED lighted magnifier set. It includes one lighted handle, one 2x power 110mm rimless round acrylic lens, one 2x rimless rectangular lens, and one 3.5x power dual acrylic lens. To use, simply select from the three lenses included and snap the lens into the handle. Press the buttons on the side of the handle to release the lens and select a new one.