FCS Replacement Fusion Fin Box Rail 9 Degree Brand_Slingshot 50mm H - 144mm W

50mm H - 144mm W - 135mm L

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An upgraded sport version of the legendary Knoxville

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FCS Replacement Fusion Fin Box Rail 9 Degree Brand_Slingshot 50mm H - 144mm W1 FCS Fusion rail plug with 9 degrees cant The 9 degree plugs are recommended for boards with deep concaves. FCS created the Fusion because of a need for a high quality, easy to install system, that can be installed under the fiberglass (as preferred by boards using new technologies such as EPS). This also provides the consumer a higher performing fin system that fits the worlds largest range of premium fins. The insert provides a base of high density