What kind of leash is suitable for a 3-month-old dog

The eight-character traction rope you mentioned is actually called chest and back traction belt.

This pullover is called a neck strap.

It's more comfortable to use a chest-backed dog.

But dogs with necks are easier to lead.

Especially when the dog is running around, you can pull it tighter.

Let the dog know not to run around.

Teach the dog a few more times and it will become very obedient.

Take a walk in the footsteps of the master

Stop running around and talking nonsense.

There will be no situation where the dog pulls the owner in front and runs behind himself.