TACTICAL PEN / SELF DEFENSE PEN / EMERGENCY GLASS BREAKER / SURVIVAL DEFENSE TOOL FEATURES: Diamond cut non-slip grip High tensile aviation grade alloy Carbide tip glass breaker Rear cap lid opening to expose pen for writing Lid has clip to secure pen to pocket or webbing straps Includes black ink, and takes standard Parker® refills available at most stationery / newsagent Worn by security, police, military personnel as well as civilians for self defence Professional writing pen with rounded tip Commonly used in martial arts and self defence training Effective in emergency glass breakage (i.e. house fire, or over turned motor vehicle) Also fitted with small detachable emergency whistle Subtle, discrete and lightweight device for self defence and personal protection Colour: Black matte / no reflective surface Material: Aviation grade aluminium Length: Approx 15.2cm Weight: 49 grams