Ronstan Series 15 BB Upright Lead Block windshield and in the home

and in the home

Open coat construction provides a more aggressive cut and minimizes dust clogging

it is a good safety item to have for those unexpected emergencies (that hopefully never happen)

lightweight aluminium

Ronstan Series 15 BB Upright Lead Block windshield and in the homeRonstan Series 15 Ball Bearing Upright Lead Block RF15171 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 Applications Dinghy control lines Vangs, cunninghams and tweakers Shock cord tensioning systems Materials BB sheaves: UV stabilised acetal