Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171] Anchoring & Docking | Anchors Defining the amount of energy

Defining the amount of energy available in a battery is a complex task since battery age

Not for use for while trailering boat

and mounts on a 0 to 70 degree transom

Powerful flushing action with advanced design features

Total length with both poles is 37

Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171] Anchoring & Docking | Anchors Defining the amount of energySeries 40 Ball Bearing Block Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Applications: Typically used for halyards at the mast base. Materials: Acetal ball