Quick view Rainbow Fin Company 3.25" Stewart Single Fin by Rainbow Fin Co - Lightly-Used Single Trailing Fin - Matte Black CONDITION: This barely used 3.25" center fin from Stewart Surfboards, made by Rainbow Fin Company is in like-new condition. The leading and trailing edges as well as the fin body are flawless. The... Now: $34.99 MSRP: $54.99 Was: Add to Cart