Turning Point Hub Kit: 505 Features * Lifetime Warranty * Never buy another hub kit system again * Inner splines adapt to the engine * Outer hub compatible with different props * Reduce gear shock & engine/drive damage * Save up to 30% when purchasing a replacement prop * Eliminate propeller vibration & chatter * Eliminate hub cracking & failure * Corrosion resistant materials - brass splines * Reduce gear shock & engine/drive damage * Compatible with Michigan Wheel® XHS® and Mercury® Flo Torq® hub kits, but greatly increases ease of installation, durability, and shock absorption value. * Also adapts to all Michigan Wheel® and Mercury® interchangeable propellers Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].