1-3/4 inch Port and 5/16 inch Sweet Iron Correction with Copper Stripes curb bit. An attractive, well balanced shank with medium plus leverage. The bars of the mouthpiece are molded to make it comfortable for the horse to carry. The sweet iron and copper create moisture for a softer mouth. The port has slight palate pressure for better headset and more control. This bit works great both on the trail and in the arena. Best used for roping, reining, barrels and trail riding.