Chain-Slip Collars
Simply called a choke chain, this variety is used for training very aggressive dogs. Contrary to the steady pulling mode, this collar sits high on the neck and involves a fast tug-and-release method, which tightens around the dog as long as he/she continues to pull. Prior to using this, make sure that you understand the guidelines properly. To be precise, use this collar when your dog does not behave well with the regular, traditional ones.