A pair of bi-focal safety spectacles for when you need to be able to see close up. The bottom part of the lens has the magnification enabling you to read micrometers or work with precision parts. As you would expect from 3M the lenses are anti-scratch and anti-fog. The arms are adjustable in length and angle enabling you to find the most comforable fit for you. Approved to EN 166 1F and available in three strengths +1.50, +2.00 and +2.50.