Nitecore Titanium Pen NTP10 is a discreet, indestructible pen could writes smoothly as any good pen should, while protecting you from unexpected assaults. With its body carved from CNC milled titanium alloy with a thickness of 1.8 making it almost unbreakable, this pen maintains an aesthetically appealing elegance. Its tungsten steel tapered tip helps the NTP10 to double as a window breaker and self-defense tool when it comes to close quarters combat.