These six sections of flex-arm material are a great accessory to your Nasty Clamps, and when joined together add up to a total length of twenty-four inches. Each individual section is four inches long, completely modular (i.e.: can be joined up with other sections or broken apart), and can be used to give quite a bit of reach to your clamps' flex-arms.
*Note: Adding extra length to your clamp's flex-arm (beyond its standard length of six inches) will reduce the amount of weight that the arm can support without bending. Be Nasty, but work safely.
†Another Note: These flex-arms are made of Delrin®, which is a very high-quality plastic. Delrin® has a strong resistance to UV radiation (very important if you're doing a lot of outdoor work with your clamps), and also happens to be fairly tolerant of harsh chemicals and solvents. With proper care, and semi-regular cleaning, these flex-arms and your Nasty Clamps should last for quite a good long time.