The Rocky Mountain Warhead Crossbow Broadhead features an aluminum ferrule with a cut on contact tip. This 100 grain head has a jackknife style blade deployment and a rugged design. The blades are 0.035 inches thick and have a 1.75 inch cutting diameter. There are three heads to a pack. Aluminum ferrule Cut on contact tip Weighs in at 100 grains Jackknife blade deployment 3 broadheads per pack