text: The original combat rosary was small and made of metal beading (or whatever it's called) to fit in the pocket and be durable. It was given to Catholic soldiers during WW I and also WW II. (I happen to have such a one.) The modern one is larger and, as with any rosary whether made from cord, precious stone, plastic, metal etc.  is a weapon in spiritual battle. 
  
  Perhaps the rosary itself is a problem for those who don't believe there is a spiritual battle...?