This stylish tactical pen is machined from T6061 aircraft aluminum. It is 5.7 inches overall in length, weighs 1.4 ounces, and utilizes Parker and Hauser ink cartridge (which is included). It has an attractive black finish, and a handy and easy-to-use screw on/screw off cap.Features:- 5.7 inches overall, weighs 1.4 ounces - T6061 aircraft aluminum construction - Hand screw on/screw off cap - Utilizes Parker and Hauser ink cartridge (included) - Attractive black finish Specifications:- Overall Length: 5.75- Open w/Out Cap: 5.3- Weight: 1.4 oz.- Ink Color: Black