Bib vs. Running Martingale for Horses: Understanding the Difference

Question
sir, when to use a bib martingale on horses?? what is the difference between bib and running martingales

Answer
HI-- THE BIB MARTINGALE  JUST HAS THE BIB SHAPED PIECE OF LEATHER PROB TO HOLD THE REINS STRAIGHT WHILE GALLOPING AND WILL KEEP THE HORSE FROM THROWING IT'S HEAD TOO MUCH.  THE RUNNING MARTINGALE IS JUST A LEATHER NECK RING WHICH HOOKS UP TO THE GIRTH. THAT WILL KEEP THE SADDLE FROM SLIPPING DURING THE RACE. THANKS ED HESS