Our Red Paddle Co black plastic fin is supplied with a nut and bolt connection to ensure a 100% secure hold is compatible with all US fin boxes. This fin is supplied with our windsurfing boards; the 10'7 Wind comes with a set of two and the 10'7 Windsurf comes with one, along with the daggerboard fin.

Here is our video, which you can find in the Red Paddle Co Clubhouse,on how to fit a fin using a 'Quick-fit US Fin Bolt':

Fin height = 9" from the bottom of the board. Base length = 6.5"