Rio's In Touch T Series Heads, such as T-14, T-11, etc are 30 foot in length and come with welded loops on each end. These 30 foot heads are intended to be cut to shorter lengths. Typical heads are 10', 12' or 14'.
When you cut the head, you will need to create a way to attach your leader. You can buy a pack of Rio Braided Loops and add them to the head. We suggest the 3-6 weight loops since they fit best on the relatively thin line diameter of these heads.
If you are comfortable tying an Albright Knot, you can add a butt section of monofilament and then put a loop in it. We generally do not suggest a nail knot since they often pull off the head when placed under heavy pressure.