Cons - If you actually look at these, you can see they are cheap chromed metal pretty easily, and they aren't likely to be very strong compared to others I have. I would also prefer the square was bigger, but that's a personal preference.
Pros - They're pretty, and from arm's length on a dance floor you don't notice the construction. They're also not as heavy as silver ones I have, which is a slight benefit. The price it right, too, so really can't complain.
Jewellery is meant to look good, and they do at a nice price.