5.6 cm
Selling the board as it is too small for me (102kg) SUNOVA Foil Drive Trench board 5'6" * 19 1/2" 50 L 4.2 kg I bought it in December for $2280 incl shipping. The board is as new.
850 cm
Code 850s front foil, near new condition, couple of light scuffs nothing deep, no chips all could polish out if you were that way inclined.