This midlength board from Ron Jon features a true quad fin setup. No fin box or plugs for a center fin. Without the center fin, this board will tend to ride a bit looser, but the deep swallow tail helps to hold the board on the wave and give more control. With a very full width throughout the board's length, and a very mellow rocker, this board should be fast, catch waves easily, and is well suited for use in small and/or weak wave conditions. Width: 21 1/2" Thickness: 2 7/8"