The ACME 380 is a CNC-machined 4-blade Nibral propeller tailored for balanced, high-performance wake boats. With a 13.50″ diameter and 17.50″ pitch, it delivers powerful acceleration with controlled hold. Diameter: 13.50″ Pitch: 17.50″ Cup: .105″ Hub Length: 02.750″ Bore: 1.125″ Blades: 4 Rotation: Right