Sprenger HS Rubber Mullen Mouth Bit With 20mm Straight Flexible Mouthpiece color_58126 moss They can also be used HOF BOST NY 3 They can also be used together as an additional layer of absorption under the saddle True innovation in style and technology makes Halo a real statement in the show ring Rubber Mullen Mouth bit 20 mm thickness straight and flexible mouthpiecemade of soft but durable rubber that has a stainless steel cable inside to reinforce the mouthpieceexerts steady and even pressure onto the whole tongue widthCompared to metal bits rubber bits are softer and should not get in contact with the teeth of your horse All SPRENGER rubber bits have a steel cable to provide more security