The Gear Stock Tactical Glass Breaker Pen is mightier than the sword! This versatile multi-tool is much more than just a writing instrument. With a solid aluminum construction, grooved outer shell, and blunt angled tip, it makes an effective kubaton-style weapon for self-defense. The screw-on cap is also equipped with a glass-breaker tip for emergency window smashing. Also features a thin deep-carry pocket clip and a Schmidt P900 M ballpoint ink cartrdige.