The Rockeye AUTO is a collaboration between Les George and Pro-Tech, and like all their knives it has a hard-hitting coil spring. It has a CPM-S35VN stainless steel blade with a false top swedge, thumb ramp jimping, and a reinforced tip for maximum penetration effectiveness without compromising integrity. The black handle is extremely durable and makes this an ideal folder for tactical operations. The handle is made from milled aircraft-grade aluminum for strength and to keep the weight down. It's ergonomic, lightning-fast and just an awesome all-around blade.