MUKOOL Boat Propeller 7 1/2 X 7-BA Outboard Motor Propeller Fit for Yamaha Motor 4ACMHS 4ACMLH Two Stroke/Yamaha Motor F4BMHS F4BMHL Four Stroke 4HP 5HP 6HP Aftermarket aluminium alloy propellers for Yamaha outboard motor 4ACMHS 4ACMLH two stroke/Yamaha motor F4BMHS F4BMHL four stroke (4HP 5HP 6HP). Outboard propeller 3 blades was made of aluminium alloy. Use: Family, water sports, or small boats ,only for Yamaha outboard moldel. Good design, high quality, and performance in a low-cost, lightweight motor propellers. A good choice for your Yamaha outboard, Aftermarket for an old Yamaha outboard propellers.