The Aurora Fire Starter 2SA uses a Super Alloy Stainless Steal Striking Blade made from a tungsten, carbide, and cobalt alloy that takes off enough material to start a fire without excessive wear. The striking blade is an upgrade in durability over the standard 440C mode, and takes off enough material to start a fire without causing excessive wear. It can can be flipped over to reveal a fresh striking surface. The Aurora Fire Starter is designed to function wet or dry, and it is machined from solid light weight aircraft aluminum NO PLASTIC!. The knurled grip will not break when you need it most.