Sprenger 16mm Pelham Double Jointed Short Shank Horse Bit Size:125mm windproof and breathable protection Light windproof and breathable protection whilst still supplying ample support to the rider Pelham 16 mm double jointed short shank Stainless steel mouth pieceoffers more control with strong and powerful horsesenables precise and effective rein aids due to acting on tongue poll and lower jawcurb chain should come into play at a maximum angle of 45° to limit the poll pressurethe leverage effect on the poll can be varied by different rein optionsoften used in combination with bit converters or with 2 reinsuse of a curb chain guard is recommended to protect the sensitive lower jaw bone