Medium port bits are used with curb bits or combined with loose ring snaffle bits. Medium port bits are leverage bits when used with a curb chain. HorseLoverZ carries all sizes including miniature horse bits, pony bits or draft horse bits. Choose materials like sweet iron, copper, stainless steel, or chrome. Shank styles include long shanks for walking horse bits, or short shanks for grazing bits. We offer medium port bits with a plain shank, engraved shank, flat shank, aluminum shank or a silver trimmed show bit.