The Camillus CHOFF 6.25" Titanium Bonded Folding Knife featuring a 2.75" 420 stainless steel l blade making it up to 3x harder than untreated steel so the blades stay sharper, longer. 420 steel is a rugged stainless steel with a HRC of 52-55 making it fairly easy to resharpen. The handle is made of glass reinforced nylon. This material is used in many of our knives to provide you the strongest and most rigid handle. Lifetime Warranty.