The Loose Ring allows for immediate release and relief from tongue and bar pressure. The bit is immediately reset to a neutral position in the horse's mouth. A bridoon is a bit designed specifically for use in the double bridle. The rings are smaller in diameter than a regular bit, and the mouthpiece is usually smaller in diameter.
The French Link is useful for horses that dislike the 'nutcracker' effect. The French Link figure 8 shaped lozenge rests vertically on the horse's tongue applying harsh pressure but reduces the direct pressure on the outside of the bars of the mouth.
This bit is stronger than the Control Plate and the Elliptical.