Tactical Pen for Self Defense with Window Glass Breaker DNA Collector, Aluminum Black Ballpoint Pens Writing Multifunctional EDC Survival Tool Gear with 2 Ink Refill and Case for Police Military SWAT PERFECT SELF-DEFENSE WEAPON FOR CRITICAL EVENTS WITH DIAMOND SHARP HEAD - Our self defense pen can protect you from dangerous situations where it would otherwise be ill advised to be armed for legal or social reasons. In emergency situations, the strong pen head can be used to break glass to make escapes and powerful to use on bodys pressure points. BRILLIANT DESIGN WITH DNA COLLECTOR - Our strike pen has an ergonomic design for easier handling. The threads on our police pen improve the grip for writing while the anti-skid properties reduce the chances of skidding to practically nil. The checkered areas would hold DNA, and if it were used in a traumatic event and there was blood left on the pen, there surely would be DNA left. OUTSTANDING PEN FOR BOARDROOM AND FIELDS - The ink is weatherproof and can be used to write on any surface (smooth or rough, dry or wet). Our combat pen feels great in your hand and is a perfect writing instrument. Definitely a perfect companion for you in formal or field situations. AEROSPACE ALUMINUM ALLOY MATERIAL - The body of our glass breaker pen is made up of machined aluminum alloy body, while the pocket clip is all manganese steel. This military pen wont get easily damaged and can be relied upon to serve perfectly during the time its require. GET YOUR OWN EXTRA STEALTH PROTECTION - This tactical pen EDC also comes with 2 ink refill for extra usage which will last for a very long time. Also perfect as birthday gifts for men and women, give your beloved ones the extra protection they deserve!