Made with the ability to be installed without drilling, it gives you the option to choose the method that suits you without causing damage to the engine. The "D" shaped profile and longer edges provide increased stability, while the inverted rear end reduces drag. Designed for engines over 40hp. Ideal for those who want to plane their boat in half the time, reduce bow rise, eliminate chine walking, and stop cavitation. At the same time, it allows for maximum speed and increased fuel efficiency.