We have bought in the matching collars for the canal leads, so you can have a complete set.
The collars should be fitted on your dog in such a way that if the dog pulls, the collar will fit perfectly around their neck. It should never strangle them or give them discomfort! While the dog isn't pulling, the collar will hang nice and loosely around their neck.
Canal Collars are available in 2 widths (1.80 & 2.50cm)