Top sellTungsten Steel Tactical Pen ,Business Office Pen ,Outdoor Self-defense Equipment Ultra-high Hardness Survival Toolluxury Aircraft Aluminum Tactical Defense Pen ,Tactical Pen ,Army Pen Emergency Tool Body material: 6061 - T6 aircraft aluminum Sharpe side: high hardness stainless steel embedded tungsten steel Size: 5.9" * 0.47" Weight: 1.27oz. Twist to open and close Glass breaker and criminal DNA collector at top of pen.pen can write words as normal use