There are two metal clips on the bottom of the seat and on the side of the boat at the bottom. This was for a set of bungie style cords to keep the 'sunpad' in place. Mine are missing and I do not use them. With that said never run your boat or tailer the boat with the seat in the sunpad position as it will blow out!
Makes for a nice snack and beverage table while setting on the teak at the sandbar!