Kershaw Knives are known throughout the world for their industry leading and innovative designs. Many of their spring assisted knives come with the SpeedSafe system. This is Kershaw's version of the assisted opening knife. They also have a large line of flipper knives. Their "Flipper" system has a flipper desinged into the backside of the blade base which allows you to flip open the knife. Kershaw's automatic knives, known by the brand name Zero Tolerance, are some of the biggest, baddest automatic knives you will find. These automatic knives are well built and have many great features including the fact they are molle compatible, many are ambidextrous openers, and also boast additional features that make them great for the combat soldier or the weekend warrior. Check out Kershaw's broad line of fantastic automatic knives and spring assisted knives and you will quickly find out why so many people love their knives.