Aluminum, Round style.
Fits Mercury/Mariner 4/5 hp. 2-cycle (MY1987 & newer), F4/5/6 hp. FourStroke
(MY1999 & newer), F8/9.9 hp. FourStroke (MY2005 & newer), 15 hp. 2-cycle
Seapro (MY2005 & newer), F25/30 EFI...