This bit is a great option for horses that like to be heavy in your hands and hang on the bit. The rings on a loose ring bit are completely loose and can rotate freely. This gives the rider more play as the rings shift with the change in rein pressure. The roller link reduces nutcracker action, has a more even pressure over the bars, and allows independent control over the two sides of the mouth. The sweet iron mouthpiece and brass rollers encourage the horse to salivate, making the horse lighter in the rider's hands The central brass rings encourage the horse to mouthe the bit as well as reducing the nutcracker action. Slightly curved to be more comfortable in the horse's mouth and to allow extra space for the tongue