lol ***. You steal that from a construction site?????????
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!
You can get shock cord from rei etc to do the trick. I lost my rear seat from not having those clips on. Be careful