This one is very similar to the one we have.
It is padded around the neck and thigh portion.
The straps adjust to pull the legs closer to the shoulders.
This allows for deeper penetration, and of course, forced exposure for any pleasure or pain being induced by your partner.
I have to say it is more comfortable than it looks and keeps you in a position that would hard to manage for long periods of time on your own, especially if you arms are also bound. It allows you to relax your body and forget about having to keep yourself in a certain position. And that means, getting to go into the flow of play and not worrying about losing your expected stance.
I did find out you are still able to close your legs to a certain degree - you know when you're at the point of stop but don't?! But this could also be because I am very short, so the straps only adjust so far, and we did not try to poke extra holes to manipulate my legs more.
Depending how long your sessions are, do expect to find some after effects. Much like when your foot may fall asleep, legs could be a little numb and then have that tingly sensation in the joint area between your hip and thigh.
You can find these for pretty reasonable prices, especially on Amazon. I'm not sure where ours came from, as you know, they are usually bought and sprung on me.
As I searched, I did find them ranging from between the $16 and $40 dollar range.
(One link is above)
So it's totally a fun item for a smaller cost!