thicker at the head. am already thickest at the base and thick up the shaft. my head is a decent size, but have always wished it was bigger to match the rest of my cock. if I use a cock ring or jelly ring at the base the head flares much bigger and this not only looks much more "picture perfect" but it also feels better to me, and my partners seem to like it better too. the head is there for a mans pleasure and a womans pleasure also, so why not want more of this pleasure locale. give me a huge plum shaped flaring helmet anyday