When the dog walk nicely on the lead, the collar stays relatively loose, and the dog feels no stress in its neck. When the dog rush out, the collar tighten to the size of a common collar in order to keep the dog safe.
Easy to wear or take-off.
Lining is polyester mesh and soft foam, breathable and comfortable.
Customized champagne-gold hardware.
We may find some suitable collocation that you might like.