This is my second lens. The first was 1.75x. This one isn't that good. For some reason it's a bit smaller so it can hang inside the helmet and fall out. But the increase is ok.
A great help if you have them and don't have to wear glasses. Would have given it 5 stars but had to tape the lens twice, it was too thick to fit in the slot of my Hobart blackout hood.
After struggling with reading glasses in my welding helmet for over 15 years, this is the way to weld. I use bifocals in the helmet so with the helmet on I can see objects that need adjustment and when the helmet is down I can look through that magnifying glass insert and weld! Easy to insert into the helmet and perfectly clear.