I was really excited when I got this in the mail. I wasn't expecting it to be so HUGE. This thing is pretty big and is not for first timers. The dimensions as listed are correct, but be advised though, that the circumference ranges from around 6 to 6 1/2 inches, which is pretty thick. Also, the suction cup works extremely well and it's very very easy to clean. The only con that I can think of is the plastic smell. I've gotten some of it to go away but you can still smell it.