Many dog owners teach their dogs tricks. This serves several purposes: it develops a stronger relationship between the dog and human, it provides entertainment, and it engages the dog's mind, which can help to alleviate problems caused by boredom.
Collars and harnesses
Here are a few of the different collars and harness that you can use for your dog
Buckle collars: are meant to be buckled to fasten them and are mostly made up of nylon, cotton, or leather. They can both be flat or rolled and are quite adjustable. Buckle collars are adjustable and do not strangle dogs. Rolled leather collars are better than flat ones as they avoid chafing or hair breakage.
Quick-Release Collars: Flat nylon buckle collars have plastic fastenings that help to put on and take off the collar quickly. These are adjustable too and do not tighten around dog's necks.
Flat nylon buckle collars: have plastic fastenings that help to put on and take off the collar quickly. These are adjustable too and do not tighten around dog's necks.
Break-away Collars: It is a quick-release collar and is meant to help the dog pull itself free, if the need be. Its inventor was inspired to design it after his dog get choked to death because the collar he was wearing got caught on something. However, if attached to a leash, the collar will not open, giving you the freedom to control the dog, when you are with him.
Slip Collars: Slip collars are also known as choke chains or chokers. They can be made of braided nylon, cotton, metal or leather and have 'O' rings at either end. The collar is looped through one of the rings. The collar can be tightened and loosened with pressure from the lead. Attaching the lead to the floating ring or the dead ring will prevent the collar from tightening.
Martingale Collar: The martingale collar is a collar that has only a section on it that will tighten when pulled. This is different from the choke collar that will tighten indefinitely.
Head Collar: The head collar is very similar to a halter on a horse. The theory it is that if you have control of the head, you have control of the body. The head collar generally consists of two loops. One loop goes behind the ears and the other goes over the dog's nose and they meet somewhere below the dog's jaw. This tool makes it more difficult for the dog to pull on his leash. This tool is usually employed during positive reinforcement training.
No Pull Harness: The no-pull harness is worn on the body of the animal. The no-pull harness differs significantly from the standard harness since it makes it harder for the dog to pull because it distributes energy over the dog’s back and shoulders. The no-pull harness restricts the movement of the dog’s body when the dog pulls. Like the head collar, the no pull harness does not teach the dog not to pull; it only makes it harder for the dog to pull. This harness is generally used during positive reinforcement training. | 
