This Moffatt 95105 magnifier lens mounts onto the shade of any 100 watt Moffatt task light to provide visual detail of small objects. The main lens is 2 x 4" (D x W) for 2x magnification, with a dual 1" diameter meniscus lens bonded near the corner of the main lens for 4x magnification. The main lens is made of glass for superior optics and resistance to scratching and a dust cover is included for protection of the lens. This magnifier lens is suitable for use in machinery, automotive, or workshop applications. Moffatt Products manufactures task lighting, magnifiers, flex arms, and safety shields. The company, founded in 1954, is headquartered in Watertown, SD.