Comes with push rivets! Replacement seat pad for Perception Search, Mad River Synergy and Wilderness Systems Tarpon Kayaks. (All clones of the original WS Tarpon sit-on-top kayak.) Also found on the Perception Tribe. Fits kayak models that have previously had this seat pad, molded with push rivet holes. Pad is 19 in. wide by 18 in. front to back, fastens to boat with eight plastic push rivets, included, but not shown. (aka 17040128)