Steel wire armoured cable is commonly abbreviated as SWA cable. It is used in a variety of scenarios, mostly for where a cable is being used outdoors, to protect it from the elements. You can commonly see SWA cable in gardens for outdoor lighting.
Still not really sure what it is? Here's a quick overview of SWA Cable.
Where we sell SWA cable by the metre, you will receive the full amount of metres in a coil, not in separate lengths.