The jointed mouth rugby pelham has a single jointed mouthpiece which acts on the bars and sometimes the palate of the horses mouth. The broken mouthpiece can effect the way the curb comes into play and lessen the direct action of the curb, but putting more pressure on the bars of the mouth and possibly the palate. The jointed rugby pelham can be good for horses that tend to put their head down as the jointed mouthpiece often has the effect of raising the horses head. Pelham bits are designed to be used with two reins, the 'snaffle' rein on the larger ring which should have a constant contact, and the curb rein is attached to the smaller loose bottom ring and is used when needed. The small hole in the shank just above the curb ring is for a lip strap, not essential but correct for showing and helps to keep the curb chain flat. Rugby pelhams are designed to give the appearance of the horse wearing a double bridle but with only one mouthpiece, useful for horses that are being shown but dislike or do not have enough room in their mouth for a double.