Jump'In D-ring bit with chainComposition: German silver which is a relaxing alloy, and a stainless steel chain. Effect: A D ring bit helps create a frame and keeps the horse focused. It is a good alternative to a full cheek bit. Flat cannons with two chain links that act a bit like a French Mouth bit, but with a more intense action. Using advice: this kind of bit is quite special and allows a stronger action on the horse's mouth, but with no curb chain or lever effect.