Collar
It is recommended to use semi-controlled collar + spring buffer. This has the best control effect. If you are worried that the dog will escape, then use full control + spring buffer
The chest-back type will affect the development of the dog's sternum, and may cause sternum deformation over time, so it is not recommended
Furthermore, the chest-back type has poor control over large dogs
p>The P chain is useless at ordinary times
Because the dog is definitely in a state of excitement when going out, and using this will strangle its fur and neck
Only after Professionally trained dogs will only use the P chain if they are on the playing field
(Tianya has proven with practical actions that in life, the P chain is of no use to impulsive dogs, and it is also Will strangle his hands out of the red road...)