Hi guys, I want to share this tool that I am using especially if you are having some hard time disciplining your dog. It's a Dog Shock Collar. Dog trainer and even k9 handler use this tool in training their dog/companions. Inexpensive, safe, and effective, this clever device is able to correct unwanted behavior. It comes in different sizes; so rest assured that even your smallest pooch can use a collar that would fit properly and will deliver significantly less static than those used on larger dogs.