sentences:  Bitting rig
  
  A bitting rig or bitting harness is a training tool for horses that can teach a horse to accept a bridle and bit, and later assist a horse in developing the necessary musculature for a given equestrianism discipline.Generally used in conjunction with training on a longe line, it is most often seen in the training of Saddle seat horses, but also is used by some dressage trainers and as a tool to start horses in driving.