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Ronstan Series 40 Single Ball
Bearing Block w/ Swivel Shackle Top


RF40100
Description:
Ronstan Series 40 Single Sheave Block, Universal Head


Features:
  • Low friction Acetal or Torlon® bearing system
  • Lightweight
  • Cheek cut-outs for easy bearing maintenance


  • Applications:
  • Mainsheet
  • Halyard/
  • Vang/li>
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)





  • Ronstan Series 40 Single Ball Bearing Block w/ Swivel Shackle Top
    #HRF40100 List Price $31.71Only $26.95