The combination of the slightly weighted ring with an average size 3/8″ smooth snaffle makes this bit perfectly balanced for training and everyday riding. The weight of the ring increases feel for both the horse and rider which gives the horse pre-signals to rein cues and provides clear communication. Copper causes the horse’s mouth to salivate, which helps keep it soft and supple to the rider. Features: O Ring 3/8″ Copper 5 1/2″ Mouth Stage A: Are You Riding with Both Hands? Stage A bits are great for starting horses, training, or maintaining steady contact. Aspects include direct reining, non-leverage loose rings and dee rings with mouthpiece diameters 5/16” and over.