- Seats to propeller hub cavity to eliminate hub chatter and vibration - Reusable if propeller is damaged - Hub will not spin in propeller - 10° deflection to reduce banging when shifting gears or hitting a submerged object - Anodized aluminum splines (some available in bronze) - One piece construction - Rubber construction; no plastics to deteriorate - All necessary hardware included - Interchangeable with Mercury Flo-Torque and Michigan Vortex propellersSEE RBX APPLICATION CHART OR VISIT WWW.RUBEXPROPS.COM TO MATCH TO ENGINE/DRIVE