Kershaw Blur Black Serr Knife is a partially serrated flip open knife. It can perform a wide variety of functions-sawing, cutting, slicing, piercing and incision through many kinds of materials. The Sandvik 14C28N stainless steel blade with a Tungsten DLC coating on it keeps the knife sharp even after a lot of abuse. The Trac-Tec inserts on the handle facilitates a good grip. The SpeedSafe assisted opening makes it easy to open the knife. The Locking Liner locks the blade in position while use, on opening the knife. Unlocking just requires you to press the spring loaded lock. The overall size of the knife when closed is 4 1/2" and it weighs: 4.2 oz.