Does exactly what it says on the tin. The flex is well insulated and also hefty enough to (hopefully) give it a long working life. The plastic surrounds around the plugs on either end are a nice size to grip onto so that the plugs don't have to be removed by pulling on the cable. The only downside to the flex of the cable is that it can be a little rigid to get into those perfectly circular loops of cable that I am so fond of but a couple of cable ties and it behaves just fine!