Not bad, but not quite Czech glass
The filing surface on these files is etched, not glued on, so they are better than the average glass file from China. They come with nice hard plastic cases to protect the files from breaking in your purse or bag. They work fine for filing and shaping your nails, but they are not quite the quality of the Czech glass files that are available. When filing my nails, it felt like the file dragged a little more and just wasn't quite as smooth as my Czech glass. However, these are more than adequate, especially if you aren't doing a direct comparison.
Rating: 4 stars