The Buck 840 Sprint Select Folding Knife is the perfect lightweight, everyday carry knife. The 840 Sprint Select features ball bearing technology that allows this folding knife to open smooth and rapidly when you engage the flipper on the top of the knife. A sturdy liner lock safely secures the blade open while in use. The satin finished, drop point blade is made of razor sharp 420HC steel, ideal for a variety of everyday task. Features Liner LockBall Bearing Knife Technology Paul Bos Heat TreatForever Warranty