The anodised marine grade alloy cheeks capture the side thrust ball bearings which provide high sail handling efficiency and speed

Single loop head blocks include an O-ring to separate running line from head lashing or fixing

encased in a streamlined design

Series 30 upright lead block

• Open design for easy flushing of salt and sand

Ronstan Series 20 Ball Bearing Single Block with Hook RF20180 pad eye The anodised marine grade alloySERIES 20 RF20180 FEATURES Low friction High static and dynamic load capacity Lightweight Low profile swivelling hook for quick and easy attachment Hook suits rope, stainless steel and webbing fixing points Sheave 20 mm Max. Rope 6 mm Max. Cable mm Pin mm M. W. L. 100 kg B. L. 200 kg Weight 21 g