Currently writing this after tonight making my way over the second ridge...success on a whole new level. Even though the ridges look similar in size there is a distinct difference in the girth of each. It took some time for me to work my way up from conquering the first to finally feeling the second ridge make its way inside. I'm so happy that a bit of perseverance was able to get me to the point where I could ride more than the one ridge as the stretch you feel as the flare widens and then narrows again makes you gasp again and again as you move over each in turn. Due to the length of this toy it will take a little depth training to make it past the third ridge but I'll look forward to trying.