The Camillus RAGE 7.25" Carbonitride Titanium Folding Knife featuring a 3” 440 Carbonitride Titanium Non-Stick blade making the RAGE up to 10x harder than untreated steel. The handle is made of glass filled nylon. This material is used in many of our knives. We add glass-filled materials to polypropylene, ABS and other substrates in order to provide the strongest, most rigid handles. Lifetime Warranty.