The US 1918 Trench Raider Extreme Spring Assisted Knife from Tiger USA represents a new innovative line of knives. It combines two popular favorites- knives & knuckles - into the World War I styled trench knife of 1918! The handle of the Trench Raider Extreme has black coated aluminum handles reinforced with steel liners. The handles extend out into nicely contoured knuckle guards which protect but are sturdy enough to use on the offensive as well (both the bottom handle and top handle have a pair of guards). One nice feature of the Trench Raider Extreme series is that even with the knife closed fingers still easily fir through the knuckle guards making the knife useful even when closed. The drop point blade is bead blast finished 1045 surgical stainless steel (plain). The blade opens with a push of the spine flipper (the knife is spring assisted). The US 1918 Trench Raider Extreme Spring Assisted has a pocket clip for carry and a glass breaker.