Even though the halter is easy to use and doesn’t need much instruction, you still need to be very careful using it. You can cause serious neck injuries to your dog if you pull too hard on the leash. Giving that jerk of the leash can whip your dog’s head around toward you very quickly, causing damage. With the halter on you shouldn’t need to pull on the leash at all. Your dog will quickly learn from trial and error that his pulling results his head being turned away from the actual source of excitement. You should also not use the halter as your sole training device. You won’t teach your dog any responsibility for his own actions unless you continue teach him commands that he can follow. Use the head halter as a transitional tool only, not as a permanent walking device.