The Company of Animals Pet Corrector Dog Trainer is your go-to tool for stopping a wide variety of unwanted or bad behaviors. Pressing the top of the can emit a loud hiss of compressed gas that triggers an instinctual reaction in dogs, causing them to stop bad behaviors immediately. Compressed gas emits a loud hissing sound dogs dislike Stops barking, chasing, stealing, jumping up and more Completely safe, humane and effective 30 mL (30 uses per can) 50 mL (50 uses per can) 200 mL (200 uses per can) Free training guide included Pet Corrector is used and recommended by trainers throughout the world. The inert gas has no smell, is totally safe and works on most animals including cats, horses, and more. When combined with positive training methods, the Pet Corrector stops barking, chasing, stealing, jumping up, and more bad behaviors. Important: The Pet Corrector includes a free training guide to help you get started. Use Pet Corrector in accordance with the guide for the most effective training.