THESE ARE UNIVERSAL QUICK RELEASE HARDWARE KITS THEY COME AS A PAIR 2 FLOOR ATTATCMENT PLATES AND 2 "CLAMPS" THE PART YOU CAN BOLT TO A SEAT OR SOMEWHERE, ANYWHERE TO ANYTHING YOU NEED TO INSTALL AND REMOVE IN SECONDS, RAISES SEAT OR ITEM ABOUT 4.75" FROM FLOOR LEVEL JUST FYI.