We ordered this from Amazon with it being in the cheap to mid range price bracket.
On opening I was impressed with the quality of the handle which was quite heavy duty and comfortable to hold.
The metal clip that attaches to your dog’s collar is robust but smooth to open and close.
There are instructions in the box which show you how to lock the lead in an instant, keep locked and release again. All straight forward once you have read.
The lead will release a little if you put considerable force on it (but only in small amounts about a cm) If you have a small or medium size dog it is not an issue.
The lead itself has reflective thread through both edges.
Happy with this purchase for our needs and the price paid.