The Microtech Combat Troodon automatic OTF (out the front) knife is named after the Troodon dinosaur (Troh-o-don) and is the larger version of the Troodon OTF knife which debuted in 2006. The Combat Troodon features a 3.8" stainless steel blade. The 5.75" handle is anodized aluminum and features a bead blast finish hardware, glass breaker and pocket clip. The double action thumb slide is located on the side of the handle and allows for auto deployment and retraction. This knife feels great in the hand thanks to the jimping in the handle and excellent ergonomics.