Advance players, hear Me, get this! Start your regular sessions with some less smaller balls, and then increment the size to a medium, finally insert this immense balls once your loose enough, to experience one the best feelings of your life. You will “come and come again” to this feeling, no matter who you are with. Lots of lube and tons of patience will take you a long way, but it is worth it. At 17 inches, it’s big, so take it easy, I’m up to three right now, four and five is a stretch, but it can be done, I’ve seen it done and it’s heaven. Enjoy…