Barbed wires is actually a wire with series of dangerously pointed pins on it. This type of barbedwire fencing is extremely difficult to cross, since they cut and tear anything falling on them. They are an extremely powerful protection method in various places apart from farms and battlefields. From home boundaries to jails, these wires have been extensively used for protection. This type of fencing wire is generally made from iron. These are available in various styles. Some run in a straight line, while others are rounded making a mesh. This type of fencing keeps unwanted wild animals away from animal sheds and fields. In urban areas it prevents thieves and other antisocial elements from entering homes, buildings, residential and official premises. Barbed wire has always been a very successful option as far as defensive fencing is concerned.