Hardcore Hardware HHA Tactical Pen Tungsten. 75" overall. Pocket clip. Screw cap. Black anodized aluminum body. Pressurized ink cartridge. O-rings make it waterproof when cap is screwed down. Accepts standard Parker and Fisher Space Pen refills. Tungsten carbide glass breaker tip on cap. Boxed. Specifications for Hardcore Hardware HHA Tactical Pen Tungsten: Manufacturer: Hardcore Hardware Color: Black Additional Features: Pocket Clip Length: 5.75 in Overall Length: 5.75 in Package Contents: Hardcore Hardware HHA Tactical Pen Tungsten