Rex designed his hobbles out of a soft nylon rope connected with a metal swivel, button knots and braided sliders keep them snug. Working in the movie business requires horses to be patient and stand for hours. All of Rex’s horses learn to hobble as part of their basic training. Patience, patience, patience. One of Rex Peterson’s training mantras. Hobbles on a horse prevents a horse on the trailer from pawing or teaches the horse not to fight if he becomes tangled up in a fence or rope. There are countless benefits to teaching a horse this control. Always take care when you first put hobbles on your horse. You must teach a horse to understand the hobbles. Use a war bridle and work in a controlled space so that you can teach your horse not to fight the control of his front feet.