This is a genuine OEM Yamaha Saltwater Series propeller measuring 15-1/2 x 17 inches and made of durable stainless steel. It is designed to fit boats and watercrafts perfectly and improve their performance. The propeller is compatible with Yamaha engines and is ideal for use in saltwater environments. The brand of the propeller is Yamaha, and the manufacturer part number is 6CF-45978-20. It is a high-quality product that will provide excellent service. This is a LEFT hand prop.