Jump'In Waterford D-ring bitComposition: Satinless steel and Copper. Effect: A D ring bit helps create a frame and keeps the horse focused. It is a good alternative to a full cheek bit. The Waterford cannons will reduce the pressure that a horse can put on the bit. The copper rollers have a relaxing effect. Using advice: The Waterford canons are perfect for horses that tend to be too heavy on the hand or for those that take too much contact. Yet, the combination with rollers