The SOLAS® Amita 3 Aluminum 3-Blade Propeller for Yamaha delivers all-around enhanced boating performance, outstanding acceleration, and increased top speed. This 3-blade aluminum propeller from SOLAS is made using an exclusive squeeze-cast process that creates superior strength. Made to fit with Yamaha engines. Requires RBX hub kit (not included). This boat propellor from SOLAS features through-hub exhaust and pressed rubber bushing. Please refer to owner's engine manual for proper installation and torque specs. Built for enhanced boating performance. Made of squeeze-cast aluminum. Outstanding acceleration. Increased top speed. 3-blade design. Item(s) will ship directly from the manufacturer; delivery options and/or shipping upgrades are unavailable. Please allow 7-10 business days for delivery. Contiguous 48 states only. A street address is required for delivery. Once installed, this product is not eligible for return or exchange.