Large -  Chest: 48-66cm       Neck: up to 38cm

Beagle, cocker spaniel, staffy & similar

Extra Large - Chest: 54-76cm       Neck: up to 44cm

Labrador, boxer, collie & similar

Breeds listed are a guide only. Please check your dog's measurements.

DISCLAIMER: This device is designed for dogs that are used to walking without excessive pulling on the lead. It is not designed to be used as a training device.