Review on Pair of Welding Helmet Magnifier/Cheater Lenses, Size 2" x 4.25", 2.00 Diopter Strength, Made of Glass by Tone Hatton

Outstanding quality at a low price. The glass is clear and won't scratch like plastic magnifiers and comes in a nice storage box. As mentioned in some other reviews, the lens is thicker than plastic due to the plastic frame that holds the lens. I simply cut off the backing with a utility knife (careful as it's glass) and it fit perfectly into my cheap cobalt helmet and held it in place. I will buy more if needed but I think it will be a long time.