TUNGSTEN STEEL Tactical Pen ,Business Office Pen ,Outdoor Self-defense Equipment Ultra-high Hardness Survival Tool Both civil and military 1.Body material: 6061 - T6 aircraft aluminum 2.Sharpe side: high hardness stainless steel embedded tungsten steel 3.Size: 5.9" * 0.47" Weight: 1.27oz. 4.Include glass breaker ,clip and pencil 5. Used for business penctl,self-defense ,emergency aid ,survival ,camping ,tactical ,amy ect.