ROAM Longboard Fin Flex Tip Single FinA Flex tip offers more flex than a traditional longboard fin making a board feel looser and adds a liveliness which can bring a whole new flow to your surfing. Ideal board: Suitable for most egg, mid length and modern longboards Larger sizes can be used as single fin Ideal conditions: Clean, small, lined up waves. Sizes 7. 5 8. 5 9. 5" Features Foil 50 50 Base: Standard longboard Solid fiberglass