The bolt action mechanism and click open and close will make it difficult to put this piece down. The flat pen head provides a secure thumb rest, making it an effective self-defense tool as well. The sturdy clip has minimal give to provide a comfortable draw resistance in normal tactical or denim pants pockets. The body of this tactical pen, CID .45 CAL is CNC milled titanium, providing style and optimum ergonomics. Overall length: 5 inches. CNC milled Titanium Clip integrated design Flat pen head provides a secure thumb rest Clip integrated design NOT a firearm