Sprenger 16mm D Ring Snaffle Double Jointed Fixed Horse Bit Size:145mm Also for riders 4057052937149 Also for riders this shirt features a classic design with the iconic Equipe logo D Ring souble jointed snaffle 16 mm thickness with a Stainless steel mouth piecelies steady in the horse's mouth gentle on the corners of the mouthallows direct pressure transmission on the tongue and lower jaw due to the fixed mouthpiecethe lateral contact helps horses that tend to fall out whilst riding or approaching an obstacleD Rings prevent the bit from being pulled through the horse_x0018_ s mouth so it lies more steadily on the tongue giving a more comfortable feeling The fixed rings enable the rider to have a good contact with the bit