The Chemistry surfboard fin was designed by the Chem Crew. "The Chemistry "Colab 2" is a template that we designed for the high performance surfer who wants drive and the right amount of release. With it's wide base, smooth rake, and medium sized tip, The Colab 2 goes well in all types of surf. This fin is a med/large fin with a 4.49" base and 4.73" height." Honeycomb interior with carbon fiber inlay at the base to stiffen things up. This set comes with FCS II Screws.

Size: Medium 140-190 lbs.

Compatibility: FCS II, FCS

Construction: Honeycomb + Carbon Fiber

Flex: Stiff

Front Height: 4.73 Base: 4.49 Area: 14.99 Foil: Flat

Rear Height: 4.73 Base: 4.49 Area: 14.99 Foil: 50/50