BPS US Box Center Fin 8, 9 or 10 inch - Glass Flex SUP and Longboard Fin with Free 'No-Tool' Fin Screw and Wax Comb Grab yourself a SUPER STRONG (8", 9" and 10") GLASS FLEX Fin  constructed with Fiberglass-Reinforced Nylon composite materials. FOR SUPS AND LONGBOARDS  the BPS Center Fin fits all SUPs and longboards with 'Universal' or 'US Style' fin boxes. Please see our Fin Fit Guide (images on the left). FREE "NO-TOOL" FIN SCREW, PLATE and WAX COMB  because BPS loves giving surfers more you get a free no-tool fin screw and plate (for easy installation on your board without the need to use any tools) and a BPS combined Wax comb, Bottle Opener, and Hex Key. BUY WITH COMPLETE CONFIDENCE  all products from Surf and Snow Warehouse are stored and shipped (quickly and reliably) to you by Amazon in the US, and all BPS products are guaranteed with a 'Bullet Proof' guarantee for 12 months. So if you encounter any quality issues at all, just let us know and it will be immediately replaced or you'll be refunded  your choice. THANK YOU for looking at a product from our store, Surf and Snow Warehouse. We are a small family business that ONLY sells what we know and love  water sports gear. We know our products, use our products, and stand behind them 100% (please do check our feedback). We are known for the great product support, advice and after-sales service we provide  so if you have ANY questions about any of our products, please just ask.