With what appears to be no more than a standard cheap pen in your shirt pocket, you can now have a devastating last-ditch self-defense implement that you can take most anywhere with you. The Ventilator is constructed from ultra-stiff hollow carbon fiber tubing, and has a penetrating point that is protected and concealed by a standard pen cap with a pocket clip. The opposite end is covered with a slightly tacky material to enhance the grip. Carbon fiber is a High-Tec material which is completely non-metallic, extremely strong, rigid, and way lighter than fiberglass. It’s used in advanced aircraft, boats, sports equipment, etc. where performance is everything and cost is secondary. Length: 6″. Weight: 0.2 oz. Color: all black. Made in U.S.A.