A graphite bomb (also known as the "Blackout Bomb" or the "Soft Bomb") is a non-lethal weapon used to disable electrical power systems. Graphite bombs work by spreading a cloud of extremely fine, chemically treated carbon filaments over electrical components, causing a short-circuit and a disruption of the electrical supply. The filaments are only a few hundredths of an inch thick and can float in the air like a dense cloud. The weapon is sometimes referred to as a "soft bomb", since its effects are largely confined to the targeted electrical power facility, with minimal risk of collateral damage.