Hi Everyone, I used to sailboard a bit (pre kids!). I just bought a 2nd hand board on ebay because I would like to teach my teenage children to sailboard. However there was no universal joint with the board. Can anyone tell me what sort of universal joint connector I need to connect the mast to the board.

Photo attached. The board is a "Fanatic Bat funspeed 322". Also, any ideas on where I would get the part. Regards Tony.