Greenough 4A Single

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Surfbaord Fins by True Ames The Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard. The 4-A has been True Ames' bread and butter for over 40 years now, and it is still the most popular single fin design there is due to it's all-around and well-balanced performance. • True Ames Greenough 4-A Single Fin • Solid Fiberglass construction • Matte finish • Fits into a Single Fin Box • Uses screw and plate application • Highly iconic, functional, and versatile single fin • Works extremely well on almost every type of surfboard • Bread and butter design for over 40 years • Most popular single fin design due to all-around and well-balanced performance Show more