Partstock Compact Heavy Duty Premium Stainless Tungsten Steel Defender Defensive Tactical Pen Glassbreaker Military or Police Outdoor Survival Tool Keychain. Ultra-high hardness material is durable and practical. Material :Pen made of stainless steel,a kind of sturdy and solid steel material. Pen head is made of high hardness and ultra durable tungsten steel. Partstock tactical pen can be your perfect self-defense tool. Removable regroup Style Can be used as broken glass apparatus for quickly escaping when at home or driving in an emergency. Perfect Use for Womens, Police, Military, Fire Fighters, Outdoors man, and Survivalist. As the business office pen, it can provide nice writing function with high performance. Small size design is portable to carry with. You can put in your shirt pocket, backpack, jeans, etc. Also, it can go through the airport security check and won't be confiscated as a prohibited goods and weapons. Multi-purpose functions, small size come with Flannel bag and original box,Partstock tactical pen will be the best gift to your friends and family.