SouthMarine Plastic Propeller 7 1/2x8-BA for Yamaha 4HP 5HP 4A 5C F4A F5A F6C Outboard Motor 6E0-45941-01-00 7 1/2 x 8 - BA Propeller Size : 7 1/2x8-BA Net Weight: 186g, Color: Black Number of Spline: 9 Number of Blades: 3 This propeller is made of super tough but light and high strength composite material