I order a very high mag (+4.5) so they're heavy, but pretty good quality lenses. I'm going to use them with my regular distance prescription polarized glasses when I'm fishing. It sure makes rigging a lure a lot easier.The pros about these is that it has a wide surrounding view when I put them on my safety glasses. The magnification is perfect. The cons is that they are heavy. I have natural oily skin and the mixture of sweating in the shop at work...they just kept sliding off the bridge of my nose. IF the lenses were made of a lighter weight material. I'd give it 5 stars.Bought these for my elderly father who is in a rehab center following surgery. They're too heavy and hurt his face after using for just a short time. I can't get them back from him to return them, due to the pandemic - visitors aren't allowed in, and it's very difficult to get things back out of the facility as well.These were a bit too heavy for my glasses. It pulled it down too much or I had to hold it up with my hand.That's not going to work for me. Good magnification though. lens seems to be good quality, - not discernable cheap plastic.So be aware.The glasses themselves do magnify but keeping them on your own glasses is another issue. They obviously add weight to what you already have on your head but they become unusable after you get fingerprints all over them by moving them into position.I guess if you only want to use them for short periods at a time they may work. But to have them on all the time they just don’t work wellI bought these for my Dad and he really likes using them. He broke an old pair of clip on magnifiers and was shocked when I gave him these. He was shocked because the build quality is so much better than what he was using.Plus the seller VS Eyewear is amazing to work with. I originally bought at pair that was too strong so I asked for a replacement and they quickly helped me out.I use them as computer glasses. Yopu can use them instead of bi-focals or cheaters.It's a 3 star only because it did not work for me. I have transition glasses and was hoping to be able to use it with them as my vision is undergoing problems. It's a great idea but alas, I returned them.Good for reading tiny pill bottle labels, and small instruction booklets, etc.