All equipment sold is required professional assessment to ensure these tools are the right fit for you and your dog, we recommend seeking a professional or working with Thomas online before using or applying any dog training tool.

We recommend dogs under 75lbs to use the 12inch prong collar with the extra links.
Dogs 75lbs and over should be using the 16-inch prong collar as well as ordering extra links.

All prong collars should be accompanied by a safety back up collar and we highly recommend seeking professional help with the introduction of any dog training tools.