The blue sweet iron rollers on this Bombers Cherry Roller Loose Ring Snaffle are constructed tightly, so there is no chance of pinching. The rollers promote relaxation in the lower jaw by encouraging the horse to mouth and play with the bit, thus reducing the likelihood of him grabbing hold of the bit or leaning on it.
The blue sweet iron oxidises easily, creating a warm and sweet taste in the horse's mouth, which encourages salivation, gentle mouthing and acceptance of the bit.
The loose rings help to make the bit mobile within the mouth, further helping with relaxation and softening to the contact. They allow for immediate release of tongue and bar pressure when the rein aids are relaxed, thus rewarding a correct response quickly.
Please note that the blue will fade with use.