Slip collars (commonly called choke chain or check chains) are made of metal links or rolled material such as nylon or leather. A metal ring is at each end. Historically, slip collars have been used as a matter of course, mostly in North America and the UK. In the last few decades use of these collars has declined. Correctly used, the collar should make a quick clicking not zipping sound when quickly snapped and released to startle or get the attention of the dog and indicate to the handler that the technique was a swift jerk not a choke. The idea is not to strangle the dog, though this can happen if the collar is improperly used.
Step one of each run is the walkthrough. If you’ve ever been to an agility trial and seen a group of people walking around in the ring with one arm out and muttering commands to an invisible dog, you’ve just witnessed the walkthrough portion of the trial. These people may look three fries short of a Happy Meal, but they’re actually hard at work memorizing the course and plotting out how they will run it.
The leash or lead is used to connect the dog to the handler, lead the dog, as well as to control the dog in urban areas. Most communities have laws which prohibit dogs from running at large. They may be made of any material such as nylon, metal or leather. A six-foot length is commonly used for walking and in training classes, though leashes come in lengths both shorter and longer. A long line (also called a lunge line) can be 3 metres (ten feet) or more in length, and are often used to train the dog to come when called from a distance.
Dogs competing in dog sports, such as flyball, agility or Schutzhund, must be trusted in an open field, off leash and surrounded by other people, dogs, hot dogs, and flying discs. This requires more focused attention on the owner and a better recall than that found in most household companion dogs, and more advanced training than that required for formal obedience.
Tunnels: There are a couple of different types of tunnels used in agility competition. One type is a tube with a U-shaped bend that is made of joined rigid hoops. Another style consists of a stiff collar-like tunnel, usually only a few feet long, that has a length of fabric fastened to one end. The dog goes in through the collar portion and must find its way out from under the collapsed fabric portion.
At a basic level, owners want dogs with which they can pleasantly share a house, a car, or a walk in the park. Some dogs need only a minimum amount of training to learn to eliminate outside (be housebroken), to sit, to lie down, or to come on command (obey a recall). Many other dogs prove more challenging. New dog owners might find training difficult and fail to make progress, because they expect dogs to think and act like humans, and are surprised and baffled when the dogs don't.
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.
"Chris really knows dogs and treated all 3 of ours as individuals. The reason I wanted a trainer at first was because my Sammie (Lab mix) was 1 year old and she was thinking she was still a little puppy ( 47 lbs of arms and legs and stubborn will). Walking her was stressful and she went CRAZY at any distraction. Chris taught me, my boyfriend Carlos, AND Sam what to do to get her to be a positive family member. All three dogs listened in different visits and we have the tools to go forward. Defiantly worth the money. Thanks Chris!"