Yamaha 20inpres UD+2 4I (#7-P) M421i SR? 2020 Model ? Bubyu x High Ballistic "Today" Iron In addition to the ultra-thin design that produces a big jump, the built-in 5 ribs are equipped with SPEED RIBFACE to improve the launch angle. Ultra straight high ballistic ? Number Configuration: 7I/8I/9I/PW ?Left and Right ?Iron Head Material & Manufacturin..