True Ames Greenough Stage III Single FinOriginally developed by George Greenough in the late '60s, the True Ames Greenough Stage III Single Fin ushered in a new era of longboard surfing. This template was developed from one of the original Wave Set fins, and modified to fit in a standard fin box. The Stage III is designed to provide both hold and release the ultimate combo! Fin Size Detail Size Height Base Area 10. 5" 10. 5" 8. 92" 50. 52" *Please note that this fin runs the entire length