Sprenger 16mm Hard Carbon Mullen Mouth Snaffle With Stainless Steel Eggbutt Horse Bit stable The navy waterproof outer is Hunter The navy waterproof outer is partnered with a luxuriously soft red fleece inner to guarantee a snug and warm feel for when out facing the elements Made in durable cotton jersey it’s ideal for active weekends whether working out or working in the garden Eggbutt Mullen Mouth 16 mm thickness with oval stainless steel rings in a hard carbon mouth piecerigid mouthpiece with smooth surfaceexerts steady and even pressure onto the whole tongue widthallows direct pressure transmission on the tongue and lower jaw due to the fixed mouthpiecelies steady in the horse's mouth gentle on the corners of the mouth