3" Rings, 5" Mouth. This multi-use bit is designed for all disciplines and any level of horse. The medium weight loose ring is an excellent choice for maintaining light contact, or for the rider who doesn't like the added feel of a traditional weight ring. The 3-piece ergonomically designed mouthpiece results in soft and even pressure across the tongue, bars and lips. Reinsman's Sweet & Sour mouthpiece tastes like a green apple dipped in molasses and is sure to become your horse's favorite! The sweet and sour combination causes increased salivation, leading to a more relaxed jaw and a supple mouth. Copper is a soft metal, check for signs of wear before each use.