Michigan Wheel 993405 Apollo D-Series 3-Blade Stainless Steel Propeller - RH, 10-3/4" Diameter x 12" PitchApollo propellers are highly polished, ultimate performance, stainless steel wheels. Apollo is designed to use Michigan Wheel's XHS XHS II hub system, and is interchangeable with Mercury's Flo Torq II hub system. They are recommended for the following applications: inflatables, aluminum consoles, bass boats, flat boats, sport boat singles, and sport boat duals. highly polished finish designed to use michigan wheel's xhs xhs ii hub system;