Perhaps Calling this a pocket knife is a misnomer. At 9" unfolded this knife is as much at home on your dinner table as a steak knife as it is on your work bench or in your tackle box. No matter the size, the Opinel knife is absolute beauty in simplicity. No fancy liner locks or thumb levers. Just a simple twist of the collar locks the blade in either the folded or extended position. The Opinel No.10 Measures 9" fully extended and just over 5" closed.