The Smith & Wesson Folding Pen Knife is built for finesse with its edge and with its ink. This tactical pen is a combo tool that features a 2-inch stainless-steel folding blade at one end and a ball-point pen at the other. The body itself is made from aluminum to withstand extreme conditions and has a built-in liner locking mechanism for the blade to ensure safe use. On top of that, this pen folding knife has a thumb stud to make it easier to open the blade and a pocket clip for convenience.