seat bottom locks

Going to be difficult, costly, and perhaps cosmetically challenging to lock those seats.I simply push the pull-loops for the seat butts down and out-of-sight behind the cushions.Additionally, I dont keep anything of substantial value in the under-seat compartments (koozies, Ring-Free, fire extinguisher, marker buoys, small tool box, etc)

Thanks guys, I could not think of an easy and nice looking method either, just thought there may be someone out there who had an idea.Irv