![Ronstan Series 15 Ball Bearing Utility Block - Triple Block, Becket, Loop Head [RF15312]](http://cdn.shopify.com/s/files/1/0499/1942/6726/products/71030_{width}x.gif?v=1605267932)
![Ronstan Series 15 Ball Bearing Utility Block - Triple Block, Becket, Loop Head [RF15312]](http://cdn.shopify.com/s/files/1/0499/1942/6726/products/71030_530x@2x.gif?v=1605267932)
Series 15 Ball Bearing Utility Block - Triple Block, Becket, 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