The most well-known of his shields is a disc shaped object with a five-pointed star design in its center, within blue, red, and white concentric circles. This shield is composed of a unique alloy of Vibranium, steel, and an unknown third component. It is virtually indestructible. It is as much an offensive weapon as a defensive one for Captain America. Cap uses it against his enemies, mainly, by throwing it at them and can perform mindbogglingly impossible tricks with it.