Kenny Aronoff Signature series. An Extreme 5B shaft with the neck and tip of a Rock. Plenty of weight for heavy hitting, yet thin enough to play with finesse. L = 16 1/2", Dia. = .595" Each Vic Firth Signature Series model was conceived through extensive research with the finest drummers from a variety of musical styles. The designs reflect their musical requirements in terms of balance, feel, sound projection and cymbal color.