Schrade Viper 3rd Gen OTF Black Spring Assist Knife. 5 1/4" closed. 3 3/8" 4034 stainless double edge dagger blade with black titanium nitride finish. Features out-the-front mechanism. Simply flip the safety lock down to unlock the blade then push on the slider near the base of the blade to the end of the handle with your thumb. To release, with your thumb push the release lock down. Once it releases, push the slider back down the handle to the closed position. Black grooved Zytel handles with integrated glass breaker. Bead blast finish stainless pocket clip.