The Kershaw 4700 Decoy has a 2.5-inch Wharncliffe blade. The straight edge is extra handy for tasks where you might need to bear down on something you're cutting. The black-oxide blade finish adds a discreet look. To open the blade, just pull back on the flipper. This is a manual opening knife, but it opens easily-and one-handed-thanks to the extra-long flipper. The handle is glass-filled nylon with a textured and rubberized inlay to enhance grip. A secure locking liner keeps the blade open when in use and releases easily when you're ready to fold the blade back into the handle.