These are very light weight plastic frames. They also have the magnification level engraved on one of the lenses, which is strange, but doesn't impede field of vision. They are not heavy enough to stay put if you are in the habit of sliding your glasses on top of your head. If you are going for inexpensive and light weight. These will work for you!I have 6 pair ... great design and value ... slightly fragile ... spring loaded spatulas which grip and assist in holding in place on head ... not made for long life but perform well ... accidentally broken 2 pair ... but for money best dealI like them and they were at a fair cost.Price was just right for THREE pair of readersI just expect what is advertised. Sometimes things are better than advertised but it remains to be seen with these. I do like how light they are and they appear to have good vision. Will update soon and hope the lenses don't scratch too easily.This set of readers are perfect. They are light-weight are appear durable enough. I’ll be placing a pair in the kitchen, on my desk and next to my bed.Got what I paid forNice and stylish glasses. I would absolutely purchase again.