This is the Kershaw 1660 Assisted Knife with a blade of Sandvik 14C28N and is a 3 inch Plain Edge Bead blasted finished blade and the handle is a 410 stainless steel bead-blasted finish. This great knife is equipped with SpeedSafe for easy opening so you can open it quickly with a manual push on the thumb stud or pull back on the flipper. It is also ambidextrous! Overall open length is 4.8" inches, closed it's 4 inches and has a reversible tip up, tip down pocket clip. Made in the USA!