10" Composite fin replacement and installation screw/washer for use in all Doyle SUP's. This is the exact fin that originally came with your Doyle SUP. It fits into a standard long center fin box so you can use it in most long board surfboards too. When installed, it will keep your board tracking straight and keep you from spinning out when you turn.
- 10 Inches in length
- Standard US Fin Box mounting
- Includes stainless steel screw and nut insert
- Composite construction for durability and great performance