The ACME 2829 is a CNC machined 4 blade Nibral propeller built for wake and ski boats. With a 16.00″ diameter and 15.00″ pitch, it delivers smooth throttle response, powerful mid-range thrust, and refined wake shaping.?Diameter:?16.00″?Pitch:?15.00″?Cup:?.075″?Hub Length:?03.125″?Bore:?1.25″?Blades:?4?Rotation:?Left