![Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]](http://boatersemporium.com/cdn/shop/products/71020XL.jpg?v=1574655232&width=1000)
![Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]](http://boatersemporium.com/cdn/shop/products/71020XL_1024x.jpg?v=1574655232)
Description
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
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