Armour, while it offers the wearer protection, is usually not immune to damage itself. Good armour must be properly maintained, or it will slowly deteriorate and become useless. Those who possess high quality armour, if they are able, check their armour for dents and tears after every fight, if possible. If repairs are necessary, it must be taken to a blacksmith or armourer, who possesses the correct materials with which to make the repairs. Many castles and towns have their own local blacksmith, due to the high demand of the warriors in that area. Some areas even have several competing factions.