It's used to open the jaws of dogs that are biting some person or another animal. Good for pets mouth bite training.Suitable for training Schutzhund,Police Dogs,Etc. Also good decompressive / vent toys / Interactive toy for small - large dogs. Use this TOOL to unlock the mouth of any dog that has bitten down on something you dont want it to clamp down on. Strong and safety training crowbar mouth stick. Prevent dogs from biting another dogs. Perfect for small and medium dog training and interactive play. Nylon thong is used to hang in a convenient location, Do not place thong on wrist, doing so may cause injury if you need to let go. Durable and well-made,High quality for training your dogs. It safely separates the dogs and the coating helps protect the dogs mouth.