Rayskin is one of the toughest, and most elegant materials available for wallets, cell phone cases and even knife handles. We have sold wallets made from rayskin since 1991 and find that they last nearly forever. It was a knifemaker friend who first introduced us to those wallets, it is only fitting that we should return the favor and make this case available to those of you who collect fine pocketknives. You will not find a better case for your knives. Measures 6-3/4" x 3", plenty of room for most folders.