AK Universal Loose Ring Lozenge with Sweat Iron Mouthpiece Universal 3-Ring bits, its effect even more significant, The optimum effect is achieved by using two pairs of reins. The main reins in the large ring, Second pair of rein in the lower ring can exert pressure on the poll if required. Certainly requires an experienced and sensitive riders hand. When pulling the reins on a 3-Ring, pressure is distributed from the tongue onto the lower jaw and the poll. This allows the rider to get more control over strong horses that evade upwards as the horse normally reacts by lowering the head trying to dodge this pressure. Loose ring always allows for immediate release and relief from the tongue and bar pressure which allows to reset the bit in the horses mouth instantly. Sweet Iron mouth piece and Brass joint helps horse to make him friendly with the bit, sweet taste, helps bit acceptance, warm and sweet, encourages salivation Available in Sizes: 4.50'',4.75”, 5.0”, 5.25”, 5.5”, 5.75”,6.00'' inches. Material: Made with High Quality Sweat Iron with Cooper Joint. Mouthpiece thickness: 14mm Main Ring Size: 65mm