Prong collars must never be turned inside out (with the prongs facing away from the dog's skin), as this may cause injury against the body and head.  Plastic tips are occasionally placed on the ends of the prongs to protect against tufts forming in the fur or, in the case of low quality manufactured collars with rough chisel cut ends, puncturing the skin. Like the slip collar, the prong collar is placed high on the dog's neck, just behind the ears, at the most sensitive point.
Watching the clever Border Collie, Tex, win the 2015 Westminster Dog Agility Contest or the whip-quick retriever, Joy, earn the large dog agility prize at the Purina Pro Plan Incredible Dog Challenge is enough to get your tail wagging, even if you don’t have a dog. The speed and discipline these canine competitors exhibit is inspirational. So, it’s no surprise that many pet owners get into agility training for dogs as a form of bonding and a fun way to exercise.
A-frame: The A-frame is a pair of planks joined in the middle at an angle so that they resemble the peak of the letter A. There are “contact” areas indicated by contrasting colors which are painted on the frame and dictate where the dog must step. The dog must go up one side and down the other, contacting the plank in the right places on each side.
Seesaw: This obstacle looks just like what you might see on a playground, with one plank supported in the middle, so that either side can be lowered toward the ground. The dog will start at one end and walk to the other, while the plank shifts with the dog’s weight. Some clubs require that this obstacle have grips or treads on them, as a safety measure.
Clicker training, a common form of positive reinforcement, is a simple and effective dog training method. Although it is still fine to train your dog without clicker training, many people find it helpful. With clicker training, you can easily and effectively teach your dog all kinds of basic and advanced commands and tricks. It's fast and easy to learn how to clicker train your dog