Michigan Wheel's XHS II Xchangeable Hub Propeller Series offers versatility and high performance. The exchangeable hub kit features a Delrin cushioned sleeve that absorbs stress and impact caused by shifting gears and is designed to spin under significant impact to protect your lower-end unit. For use with the Vortex and Apollo Prop Housings, the XHS II Hub is also well-designed to be interchangeable with Mercury's Flo-Torq II hub system, making it a good choice for a spare prop or replacement. Key Features: High performance and versatility, a good choice for a replacement or spare prop This high-quality product is well-designed for use with Vortex and Apollo prop housings It is interchangeable with Mercury's Flo-Torq II hub system It is also compatible with Evinrude/Johnson Outboards - OMC Sterndrive V6/V8 Gearcase - 1991 to Present