Trust Equestrian Dee Ring Waterford Sweet Iron BitThe Dee ring, as its name suggest, has a ring shape like a "D" with the cheek side of the "D" attached to the mouthpiece of the bit. The straight bars of the Dee ring provide a slight lateral guiding effect. This is because the bit ring is pulled against the side of the mouth opposite the rein that is activated, pushing the sides of the Dee against the horse's mouth, encouraging a turn. The Dee ring is fixed in the horse's mouth, because its shape