Bausch & Lomb Magna Visor 81-42-00 combines quality optics of Bausch & Lomb magnifiers and contemporary design. All of that come together in this quality Bausch & Lomb visor for hands-free viewing. Lightweight acrylic lenses of B&L Magna Visor Magnifiers & Loupes give you the precision you need for detail work, crafts, and hobbies. Hard-working features provide comfort and convenience. The molded frame of this B&L 814200 MagnaVisor maginfier is padded with a removable, washable fabric. The lenses are easily changed to a variety of focal lengths.