The French link in this bit means pressure is applied to both sides of the tongue. Some horses with low palates may find this bit more comfortable as it is unlikely to make contact with the palate when the bit comes in to action. The full cheeks assist with steering. Mouthpiece thickness: 14mm. Cheek height: 165mm. Stainless steel is the most common material for bits. Durable, easy to clean, tasteless and does not rust.