The second handle near the clip is the part worth paying attention to. It is called a traffic handle, and it lets you shorten the leash to almost nothing in one grab, without winding rope around your fist.
Braided rope with a padded handle, 1.2m, sizes S through XL by rope thickness. Available as a single handle or with the traffic handle added. Several colours.
What the traffic handle is for
Crossing a road. Passing another dog on a narrow path. A cyclist coming up behind you. Anywhere you need the dog beside your leg immediately and only for a few seconds. You take the lower handle, the dog is at your side, and you release it once the moment has passed.
It is also the more comfortable way to manage a strong dog, because the load sits in your palm rather than cutting across your fingers.
If your dog pulls consistently rather than situationally, this leash manages the symptom. The Leash Pulling Kit addresses the cause.