Victorinox Forschner 47300 BladeSafe, Holds Blades up to 4.5 Inches Long. Victorinox's exclusive BLADESafe™ knife storage solution features four different sizes to accommodate a variety of knives. The polypropylene cases lock and secure knives so that they can be stored virtually anywhere and remain safe from being damaged and dulled as well as keeping you safe from being cut by the edge. The 5" BLADESafe™ (47300) holds blades from 3 to 4.5 inches long. Made by Victorinox, the manufacturer of the original Swiss Army Knife, this product comes with a lifetime warranty against any defects in material and workmanship.