The ACME 3155 is a CNC machined 4 blade Nibral propeller engineered for smooth throttle and solid wake shaping. With a 15.00″ diameter and 13.00″ pitch, it offers efficient power transfer and reliable handling. Diameter: 15.00″ Pitch: 13.00″ Cup: .105″ Hub Length: 03.125″ Bore: Splined Blades: 4 Rotation: Left