The Red Silicon Wire AWG16 (3m) is a nice addition to any projects which need clean wiring. It does not hold the shape and will not meld when soldering to your project.
I typically use these in areas where wires will experience a lot of stress from sharp bends or say when wiring a robot's head and you don't want your wires to oppose the pan/tilt movements. They are very flexible and hold up well. Good value here at robotshop.