i've purchased two sets of these readers over the last three years, so i know them well. first the good news: they're inexpensive and you get multiple pairs and cases for the purchase price. that means i could leave a pair anywhere i did some reading, such as at work, the living room, etc. additionally, the lens are fine and work as advertised.now the bad news: these are made of plastic and they do not last. either the lens will crack or the frame will break relatively quickly. both times i purchased these glasses i went through all pairs in about 18 months. essentially, they are disposable; use them for a few months and then throw them away.i've switched to a metal frames from another manufacturer. hopefully, they will last longer.
丢弃
一次性使用
一次性使用