The Viper Start is a big knife with ergonomically sound shapes. The blade of steel N690-steel is thinned-out towards the back to save weight. All edges are nicely rounded, which you can also see on the spring and liners. Combined with the ergonomically designed handles this knife lies very comfortable in the hand. The blade is locked in the open position by a sturdy back-lock. In the beginning it may not run as smoothly, but that will go better over time. The end of the grip has a hidden spacer and lanyard hole. A beautifully subtle detail on a gorgeous knife.