Loose rings are commonly selected bits for dressage horses. The sliding of the rings allows the horse to chew the bit and keeps him from tightening against it. These bits use direct pressure on the horse’s tongue and lips. The single jointed snaffle is a common bit that has a nutcracker effect on the bar and tongue of the horse. The Copper promotes better acceptance because it encourages the horse to chew, thus enhancing the saliva production.