Expanding handsfree-leash with expanding belt leaves hands free to allow for pole walking. The leash is made of strong nylon.
Model: Handsfree expanding jogging and walking leash with belt (Jens hundartiklar) or Ergonomic leash (Hundliv)
The leash was specially designed taking into account the discomfort and injuries that the dog and owner may experience if the dog lunges and pulls on the leash.
Dogs who pull hard on the leash not only strain their own neck and back, but also the owner’s wrist, arm and shoulders. The expander absorbs this load.
For example www.jenshundartiklar.com (last checked July 2017)
This tip is from 2008