The Uttoxeter Kimblewick has a port mouth and slotted rings. The kimblewick action is similar to that of a hanging cheek with the added advantage of the curb chain. The port mouth mouthpiece of the Kimblewick helps to alleviate tongue pressure, whilst the slotted bit ring can be used to change the action of the curb chain and the amount of poll pressure applied.Please note Images shown may not represent exact sizes colours types etc