Naish Windsurfing Extension 0-28cm SDM
Double pin (known as the Chinook type, C type or U.S. type of fitting) windsurfing extension for SDM mastsBig rollers, really well positioned cleat for easy downhaul.
If you run a North/Nautix type of Euro pin (approx 45mm lomg) on your UJ, you can easily convert this to fit this extension with a Naish Euro US Pin Adaptor for Extensions.
This is the item you need to convert the extention to a Pin connection.
Also works with Radz 2 Popper UJ.