Two DIN 5 side lenses double the viewable area giving you a wide, almost panoramic view of your work and not just a small slice of it. Three different modes allow this 1/1/1/2 lens clarity welding mask to be used in multiple roles that require different levels of protection with a DIN 4 grinding mode, DIN 5-8 cutting mode, and a DIN 9-13 welding mode.
For the price I paid for it I was expecting it to be some what good. This thing is heavy, bulky, it don't fit my head it rubs my ears the lenses is already dull and can't see out of it. Definitely do not recommend it to anyone