Ronstan Series 30 Ball Bearing Block - Single - Loop Top 
Series 15 Ball Bearing Utility Block – Double, 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
| Weight | 0.05 g |
|---|---|
| Dimensions | 4 × 2 × 1 cm |
Brand
Ronstan
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