Ronstan Series 15 Ball Bearing Utility Block - Single, Swivel Shackle Head [RF15101]

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$ 12.88

Series 15 Ball Bearing Utility Block - Single Block, Loop Head


  • Smallest and lightest ball bearing block available
  • Precision molded 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


  • Dinghy control lines
  • Vangs, cunninghams and tweakers
  • Shock cord tensioning systems


  • BB sheaves: UV stabilized acetal
  • Ball bearings: Stainless steel
  • Cheeks: Grade 316 stainless steel