CobraTec Knives, LLC supplies quality OTF (out the front) custom knives. Our goal is stellar customer service! An OTF knife has a blade stored inside the handle which is deployed by a switch. Every CobraTec knife is double action, so the blade is retracted by the same switch. Our knives have smooth mechanisms and quality blades. An OTF is perfect to carry as an everyday knife because of its compact size and functionality. Every CobraTec knife has a limited lifetime warranty, so you can rest assured that you are purchasing a quality knife that will last a lifetime.