Introducing Kumano Ai
There are two types of Kumano Ai :
Ai for regular surfboards and SUP
(usually made with fiberglass, carbon or epoxy)
Ai for inflatable SUP (iSUP) and Foam Surfboards and any board using "Air7 brand fin boxes"
"Kumano Ai" are the small cylinders that hold the fin tight in your board.
How to use fins with Kumano Ai :
insert into your fin box.
slide the fin forward
lock down & go !
Caution & notes Kumano Ai Fins :
when removing fin, protect you hand, the trailing edge of the fin maybe sharp.
if the fin with all the Kumano Ai installed is too tight, you may need to remove one or two Ai to make install easier.