Smith & Wesson SWPENMP2BL 5.8in Aircraft Aluminum Refillable Tactical Screw Cap Pen for Outdoor Survival Camping and Everyday Carry DIMENSIONS: 5.8 inch (14.7 cm) overall length and a weight of 1.4 ounces DURABLE: Pen is made of reliable T6061 Aircraft Aluminum DEPENDABLE: Quick and easy access with the convenient pocket clip and screw-off top SECURE: Have confidence that this tool will perform when needed for self-defense and blend in when not in use BE PREPARED: Pen can be refilled with Schmidt P900M Parker Style Black Ball Point Cartridges