The Shires Full Cheek Eggbutt Snaffle Bit features full cheeks, which are ideal for younger or green horses as the cheek bars apply pressure to the horse's cheek to aid turning. The full cheeks also prevent the bit from being pulled through the mouth. This bit is made from stainless steel which is durable, easy to clean, tasteless, and does not rust. Mouthpiece thickness: 15mm. Cheek height: 165mm. Available in 4.5", 5", 5.5", or 6".