This slim shop knife is simple, sturdy, and sharp. The blade is fully retractable, making it easy to tuck into a pocket or function as a key fob when not in use. Adjust the blade position for a variety of tasks by loosening and tightening the solid brass screw-down locking mechanism. The blade can be sharpened, and Replacement Blades are available when needed. The knife body and blade are both made from high-grade Inox stainless steel.