Camillus products are made of Carbonitride Titanium™ cutlery-grade steel and are through-hardened to hold an edge.  Camillus knives will withstand the impossible task and continue delivering over extended use. 4 1/2" closed. Carbonitride Titanium Japanese AUS-8 stainless hollow ground blade. Thumb stud. Carbon fiber handles. Lifetime warranty. Made in China/Taiwan.