Fin box/mast tubes

Carbon/epoxy fin box and mast tube moulding for 65 Class and Footy class, 6 mm wide trunking for fin to take SAILSetc fin item 370RG. Use the moulding one way to give two masts tubes, one for conventional rigs, one for swing rig. And use the other way round to give a single mast tube in an intermediate position.