Case's famed Tested XX® trademark was founded on quality steel and time-tested tempering to ensure maximum performance. The blades have Stonewash finish the Nickel Silver bolsters have a Satin finish. You'll notice right away--the blade nail pulls are open all the way through making them terrifically easy to open. The S35VN steel of the blades has an amazing amount of edge retention, requiring you to sharpen less while the blade hardness and composition give the blades a durability and corrosion resistance that you can depend on. Makes a great Every Day Carry!