Clip-on magnifiers labo-clip The labo-clip system can be easily attached to the spectacle frame. The labo-clip leaves both hands free for working. Comfortable working distance even with a high level of magnification. -Used with distance spectacles to achieve optimum image quality, fits most eyeglass frames -When not needed, the lens can be flipped up and out of the way -Lenses are interchangeable for different magnification needs -Lens sizes: monocular dia. 40mm, binocular 74.5 x 22.5mm -Lightweight -Lens clamp made from glass fibre reinforced plastic -Supplied with protective box