The leash is an essential accessory for walking your dog in places where it needs to be controlled. Keeping your dog on a leash is also generally compulsory in public places.To be on the safe side, have at least two leashes for your dog: one at home and one in the car for example .

How big is a leash?

The length and width of the leash must be adapted to the size of the dog  : the heavier and more powerful it is , the shorter and wider the leash must be , in order to be able to retain it more easily. A leash less than 50 cm is well suited for very large dogs.For a dog medium , leash of about 1 m is suitable. When the dog is well educated, the leash should not be stretched because the dog walks next to its owner. The leash should be long enough for the dog to sniff the ground without strangling.A lanyard of several meters is useful for educating a puppy : for example to teach him the recall. 

For small dogs , a retractable leash is useful if you want to give the dog some autonomy when he walks in a park or other safe place. For a dog weighing more than 10 kg, the retractable leash becomes dangerous because a long length of leash no longer makes it possible to control the dog.

Do not hesitate to change the leash as the puppy grows.

What material for the leash? 

For a puppy , you need a thin and light leash . A nylon leash is fine, but choose a model with a comfortable grip, so it doesn't irritate your hand if the puppy pulls.Once the dog is adult , a beautiful leather leash is pleasant to use but must be maintained so as not to be damaged. Avoid leather if the dog tends to chew on his leash when stationary.Although it is obviously very durable, a metal leash is heavy and noisy. It is to be reserved for large dogs which must be controlled very closely.

Attaching the leash to the collar or harness?

For a dog, a harness is more comfortable than a collar . If you pull the leash a bit sharply, you won't risk strangling it because the harness distributes the pulling forces by pressing on the rib cage instead of the neck. The harness is essential for dogs with fragile backs (eg Dachshunds) or those with breathing difficulties, such as bulldogs. The harness allows air to circulate freely in the throat.Wearing a harness is also more reassuring for the dog, feeling less directly constrained. A dog with a harness usually pulls much less on its leash than a dog with a collar.