Bombers Broken Pelham Cherry RollerThe Cherry Rollers roll in the horses mouth giving him something to play with and reducing the likelihood of the bit being held in the horses teeth. They are constructed tightly so there is no chance of pinching. When pulling on the reins, the rollers allow the bit to move along the bars of the horses jaws as opposed to rubbing. The mouth piece is made from blue sweet iron that, oxidizes easily, encourages salivation helps bit acceptance, and is warm