Of course they're fake nails!
The nice part, though, for me, is that the fake nails don't wiggle excessively in the full video. The model does her dance and strains against the ropes some, and if you look closely you'll see a nail move here or there, but in most crux videos with nails that I've seen, the nails move around too much and don't resemble what the real thing would look like.
Again, this video is available from deadsexyclips.com or at a discount directly from its creator, Alex Bald, at
liu05@inbox.ru. It's under $15.
Here's a few screenshots for you nailing aficionados.