Trust Sweet Iron Full Cheek Brass Ring BitWe love this bit for young horses that tend to play with the bit. The moveable brass rings in the center of the mouthpiece give them something to do with their mouth. The mouthpiece with rings is a variant of the double broken bit. The rings in the middle stimulate the horse to play with the bit. This increases the tongue activity so that a horse will produce more saliva and the jaws can relax more so that the horse is more likely to release in the