The Gentle Leader headcollar has been scientifically designed to work with the dog’s natural instincts to control unwanted behaviour. The Gentle Leader was designed by a foremost veterinary surgeon and a past President of the National Association of Dog Trainers in the USA. The Gentle Leader enables owners to prevent their dog or puppy from pulling on the lead and makes training in basic obedience (sit, stay, down, come etc) really quick and easy because of its three-fold natural effect on the way dogs think, relax and behave. Gentle Leader is endorsed by animal behaviourists worldwide.