3 blade solas stainles ya9/14x9 prop for outboard motor , I got this with my mercury outboard I purchased a few years ago and this does not fit it my 4 stroke 15hp mercury

Solas Propellers for Yamaha - Aluminium & Stainless Steel The SOLAS YA91/4x9 stainless refers to a SOLAS brand stainless steel boat propeller with a 9-1/4 inch diameter, 9-inch pitch, designed for outboard motors like Tohatsu/Nissan/Mercury, Yamaha/Honda, and others in the 9.9-20 HP range, offering a durable, high-performance upgrade for better acceleration and control than aluminum props, often with a right-hand (standard) rotation and a specific tooth spline count (e.g., 8 or 14) depending on the engine model. Key Specifications & Details: Brand: SOLAS (Saturn or Amita series). Material: Stainless Steel (more durable, rust-resistant). Diameter: 9-1/4 inches (9.25). Pitch: 9 inches (9). Rotation: Right-Hand (RH) / Standard. Blades: Typically 3-blade. Splines: Varies by engine (e.g., 8 for Yamaha/Honda, 14 for Tohatsu/Mercury). Engine Fitment: 9.9HP to 20HP outboards (Mercury, Tohatsu, Nissan, Yamaha, Honda, etc.). Common Uses & Benefits: Performance Upgrade: Better thrust, acceleration (hole shot), and top speed compared to aluminum propellers. Durability: Resists rust and wear, especially in saltwater environments. Engine Compatibility: Fits popular small outboard engines.