absolute must for a dog owner

if this pipe is installed correctly, you will never lose your dog out of sight; IMPORTANT! Always reward whistle use with extra good treats, then you also have 99.99% success with her; This pipe is my constant companion for all situations, 24 hours a day; the less you have to use this pipe, the stronger is your relationship with the four-legged; two thumbs up; You can only recommend :-)))