Cribbing Muzzles and other  anti cribbing devises. A horse that cribs has an obsessive compulsive habit. Horses that crib swallow air which may lead to poor digestion and or colic. Cribbers also cause extensive damage to fences and stalls. Their is no known cause but most believe that how a horses handles stress or boredom could be the cause. Best Friend Cribbing Muzzles is an easy safe natural way to stop this habit.