Replacement base plate for a windsurfing mastfoot/UJ. This prevents the lower part of the mastfoot scraping and cutting into the deck of the board when it is tightened.
The safety tab prevents the rig disconnecting from the board if the mastfoot becomes loose when windsurfing. For it do its job the tab MUST be positioned downwards and forwards and located in the mast track.
This item has a universal size so should fit any modern brand of mastfoot and board.
