I like these so much I ordered a second pair in a different colour!They look different, but are very effective. You can very gently tease the metal frame to curve more to fit your frame, but I stress "very gently" as they are quite fragile when off your glasses.They come in a plastic case with a cleaning wipe.I read a lot of the negative views, but thought I'd take a chance and I'm so pleased I did! It's saved me a fortune and I've got fashionable sun glasses.They are a perfect shape match for my new specs, and have a nice design detail of a thin gold strip along the top. The lens seems decent quality. The central clip is clear, and less prominent than other clip-ons I have had, but that makes it a bit fiddly, and more difficult to attach the lenses when my specs are on my face. The lenses are completely flat, wheas my specs frame is slightly curved tobit my face better. Overall, though, I am pleased with them.I really like these. I have varifocal lenses and a ground down glass, so ordering a pair of prescription sunglasses was beyond my budget. Once you get used to the sunscreen being slightly proud of your glasses they are an easy wear. The clip on mechanism seems quite sturdy. Very happy.These lenses sit a long way forward of my glasses and hence I get quite a lot of reflection which is distracting. Part of the problem is that the lenses are so flat (no curvature at all), so they sit forward. Don’t think these are going to work for me at all.Honestly the best thing ever made.I dont like to wear contacts too often, but then I am blinded by the sun in the summer months. These were a game changer. I did get a few odd looks from family members at first, but they soon changed their tune and some even bought a pair of their own!