The "Twin-halyard block" is specially made for
a 2 to 1 main halyard.
The very small sheave is aluminium made
with a Composite Fibre bushing.
The body is completely made in "Highresistance"
stainless steel Nitronic 50.
4 sizes for breaking loads from 2600 to
10000 kg, for boats up to 70 ft.
Part Number: H050
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