"The o-ring is a great bit to start colts in and show them the basics of barrel racing. The twisted wire gives you good control and makes it easier to direct a young horse. The large connection in the center of the snaffle keeps the bit from locking up keeping the horse comfortable. The weight of the rings also makes the bit very balanced. This is a nice bit to ride from breaking horses to competing in the arena; this bit is a must in every horsemans tack room." Brittany Pozzi. Mouth: 5 1/2" Rings: 3"