The Korsteel Copper Quarter Moon Loose Ring Snaffle works like a ported three piece mouthpiece to lay softly across the horse's mouth and relieve pressure on the tongue and palate. With a traditional three piece mouthpiece, when pressure is applied to the bit it is distributed across the lips, bars and tongue. The quarter moon allows extra relief for the tongue which can lead to less tension and better acceptance of the bit. The copper in the quarter moon will also increase salivation, leading to swallowing and chewing which can further relax the jaw.