10.5 inch fin box center fin box dorsal fin box fcs longboard fin box futures fin box longboard fin box single fin box Search Radius 100miles Default sortingSort by popularitySort by average ratingSort by latestSort by price: low to highSort by price: high to low DORSAL Surfboard Fin Box Set for Longboard SUP Center Fin Box [Black – White] Sold by Goldorado $15.90