Ronstan Upright Lead Block - High Load 50mm tank preventing the sheave from rubbing

preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect

The hose is durable

Sheaves are made from impact resistant Acetal

Ronstan's All purpose blocks are a great all-round solution

Ronstan Upright Lead Block - High Load 50mm tank preventing the sheave from rubbingThis upright lead block from Ronstan is typically used for halyards at the mast base. Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Ideal for high load applications. Manufactured with a wear resistant Nylatron sheave a lightweight self lubricating polymer. This upright block with 50mm sheave is suitable for use with rope or wire. Features: Acetal ball bearings UV stabilised Acetal