I absolutely love this toy! It has multiple vibration settings and a control pack to switch through them. My boyfriend and I used it together for the first time and it was magical! Both of us are into anal play to a degree and this is perfect. It’s around 3-4 inches I would say, a little smaller than a coke can, with a ring for easy exit. First, we used it during rough, hot, drunk sex, both anally and vaginally. My boyfriend loved being in control of the remote as did I. The silicone material it’s made out of is so smooth and glides in effortlessly. Super easy to clean with soap and water too! We had a load of fun playing with this toy and it definitely did intensify play and give multiple orgasms that night. I would highly recommend for a beginner trying anal play and for definite use in couple play.