FCS II Split Keel Quad Fin Set o'brien Aluminum Shaft - Lightweight and

Aluminum Shaft - Lightweight and durable

and playful—amplified by crisp rails and a snappy rocker line

Designed for up to 3 riders

This vest is designed for the big kids wanting extra time on the water while looking cool

84 filament polypropylene rope

FCS II Split Keel Quad Fin Set o'brien Aluminum Shaft - Lightweight andOverview Specialty split keel quad fin set. High area quad keel set adds bite and control to hybrid boards with wide tails, without sacrificing pivoting capabilities. Board Types Designed to fit the FCS II Fin System. Recommended for all board types including modern fish and hybrid models with moderate to low rocker.