You can adjust the collar in to whatever size you need for your dog. Its is a great collar to have for your daily walking with your dog. The product is very durable.
Feature: Personalised,Reflective,Padded,Quick ReleaseSize: S M L XLColour: Green, Gray, BlackMaterial: nylon plastic
S collar: 2.5*30-38cm
M collar: 2.5*38-46cm
L collar: 3*46-52cm
XL collar: 3*55-65cm