Originally Posted by Jax08
It's to wrap the leash around your waist or over your shoulder while competing. The leash hooks to itself.
This. In trial it has to be around your waist, over a shoulder, or completely stowed in a pocket. Easiest way to secure it using the first two methods is a 3-4' leash with a ring on the end (no handle, just a ring) or a ring in the handle.