QSP Knife Osprey QS139-D2 Folding Knife Brass. Black oxide and stonewash blade. Osprey knife is a QSP design with a streamlined shape and a uniform line of the spine of the blade and the handle. The handle designed without major profiling allows you to grasp and hold freely in any way while maintaining the comfort of your hand. The blade, made of easy-to-maintain and sharpen Swedish Sandvik 14C28N stainless steel, has a nice, "free" shape allowing for very universal use. The knife opens due to the flipper sticking out of the blade and the blade is held in a safe position by the liner lock. Easy opening of the blade is ensured by ceramic ball bearings. The user has at his disposal a steel wire fastening clip that can be mounted on either side of the knife. Presented QSP Knife Osprey QS139-D2 Folding Knife has a handle cladding made of stonewashed brass.