![Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]](http://www.rocksolidbuy.com/cdn/shop/products/71020XL_1000x1000.jpg?v=1661039727)
Series 15 Ball Bearing Utility Block - Single Block, Loop Head
Features:
- 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
Applications:
- Dinghy control lines
- Vangs, cunninghams and tweakers
- Shock cord tensioning systems
Materials:
- BB sheaves: UV stabilized acetal
- Ball bearings: Stainless steel
- Cheeks: Grade 316 stainless steel