Dead Ringer Rampage 100 Grain 3-Blade for Broadheads (3-Pack), 1.5-Inch Rampage 3 Blade offers more cutting surface to allow for an immense blood trail, making tracking easy Low profile by design, only 7/8" in flight 0.32 thick spring stainless steel blades, hardened stainless steel trocar tip, a T-6 aluminum ferrule Blades have been tested to over 400fps with no pre-deployment 32 thousandths thick spring stainless steel blades Adjustable cutting diameter from 7/8" closed cutting width to a deadly 1.5" T-6 aluminum ferrule O-ring retention system