Ronstan Series 15 Ball Bearing Triple Block with Loop Top RF15302 SMALL KEEL BOAT 50mm requiring expensive and time-consuming grinding

requiring expensive and time-consuming grinding and sanding to remove marine growth at every haul-out

mainsheets

regardless of the kind of sailing you do

used on all top racing Optimists

Ronstan Series 15 Ball Bearing Triple Block with Loop Top RF15302 SMALL KEEL BOAT 50mm requiring expensive and time-consuming grindingSERIES 15 RF15302 FEATURES Smallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O ring to separate running line from head lashing or fixing Sheave 15 mm Max. Rope 5 mm Max. Cable mm Pin mm M. W. L. 360 kg B. L. 850 kg Weight 28 g