This John Gray custom OTF isn't unlike a lot of OTF knives out there, similar ergonomics, action, etc., but it's got a key difference. This is a gravity knife. It is opened with either gravity or centripetal force while pressing the button, and closed the same way. Because of this, it's just as fast as a lot of OTFs, but because it has no spring, making it a more reliable mechanism with fewer moving parts. Comes with a blue/carbon fiber pocket clip, and carbon fiber replacement. This is a one-of-a-kind, so if it sounds like the knife for you, act fast!