Ronstan S15 BB Block, Single, Swivel shackle head (RF15100)

Ronstan's smallest and lightest ball bearing blocks.

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

Applications:

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

Materials:

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