TigerSharp Titanium Bonded Large Folding Knife, Silver Innovative Folding Knife that never needs to be sharpened. Features TigerSharp technology. Simply remove the dull blade a slide a fresh, Titanium Bonded blade between the guides. It's quick, easy and safe! Titanium Bonded Blades are 3x harder than Steel and stay sharper, longer. Blades resist corrosion and adhesives. Includes 1 smooth edge Titanium Bonded blade and 1 serrated edge Titanium Bonded blade. Blue knife, folds for convenience. Smooth Edge and Serrated Edge Replacement Blades are available in packs of 2.