It's flabby and I don't think she can actually get hard,let alone fucking another person...I'm talking about the girl in the video.
Well hung ladies like Mariana Cordoba,Suzana Holmes,Mint or Sabrina Suzuki (what a monster) are around 20-23cm in lengh but they're nowhere near that level of thickness shown in the video,that's not normal...
It's probably silicon as others mentioned but is that actually worth it ??
I don't think any bottom would like their hole to be penetrated by that thing.