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Chinook Base Cup Kit

Chinook Base Cup Kit

This is just the top piece of a windsurfing mast base that fits with US Cup (2 pin style) extensions.  If you need to build a mast foot for your older style board, or make your older mast foot work with a newer Chinook extension, this is the part that you need.  It comes with everything you need to attach a US Cup to a rubber universal joint.  This will not work with a tendon style base.