Regiment Blades Combatives Pen Black One Size. The Patented Combatives Pen by Regiment Blades allows ergonomic control and ease of use. Unlike conventional "tactical" pens on the market the Regiment pen ring amplifies your grip strength for precise and firm strike penetration. The ring is discreet providing a seamless "grab and go" experience to feel in control when used as a self-defense or rescue tool. The adjustable clip can be oriented any direction putting the ring right where you like it. An easy draw and firm grip breeds confidence in striking ability whether you are addressing a threat or breaking a window. Legal everywhere having this pen within arm's reach such as pockets purses vehicles office desks or even weaving into molle will offer some peace of mind knowing its' there. Pen uses Lamy M22 ink cartridges for refills. Specifications for Regiment Blades Combatives Pen: Manufacturer: Regiment Blades Color: Black Activity/Occasion: Outdoor Hike Casual Travel Work Sports Size: One Size Package Contents: Regiment Blades Combatives Pen Regiment Blades RB-CP: Combatives Pen Black One Size