Compatibility: Suitable for any SUP or surfboard with standard 7.5" 8" 9" 10" fin box, suitable for longboard/surfboard/stand-up paddle
Material: made of glass filled nylon (glass fiber reinforced)
Design:Singles Fin is specially designed for the center fins of longboards and paddleboards. It is simple to set up and can be quickly removed and connected.
Tool-free fin screw: You can install it on the board without additional tools, and comes with a free screw