The only problem with this toy is that because of it, I hardly ever use my other toys. The thickness is the perfect size in my opinion, big enough that it makes you feel really stuffed, but not so much that it's going overboard. One side is pretty smooth, and the other is veiny, and this makes it feel really great if you're twisting it around while thrusting it into yourself. I'm using this toy to experiment with deep anal penetration, and it's definitely something you have to take your time with to stretch yourself out, but it feels amazing and I can slowly get more and more of it into myself with each session. I hope one day I can take the whole thing into myself. It's very flexible and easy to clean too.