Bisley Tracking Line
 
8mm matt braid with clip and ring.  6m long.
 
The long line can be a very strong communication tool between the dog and handler. With proper use the communication flows back and forth all the time during the track. It uses a language that is only known by the dog and handler which both learn and grow with from the first training track. It is refined through out the years but all too often I see only the dog using it and the handler blindly following.