Here's a short video shot today from my IPhone. This is not a training video, but just a simple video of how Easy the Easy Walk Harness can be put on and removed from a dog. The harness is designed to safely and comfortably teach a dog to walk calmly next to you and not pull on the leash.
Most harness's which attach to the back of a dog, actually teach a dog to pull because they get used to constant tension on the leash. The Easy Walk Harness is attached to the front of the dog and when a dog pulls, the device gently pulls the front two legs together prevention the dog from moving forward while your holding onto the leash. You can also redirect the direction and control your dog into a turn, by pulling on the front of the leash.
I highly recommend that you take your dog with you to a local store that sells them, so that you can property fit your dog with the right size.