Ronstan Upright Lead Block, 29mm Acetal Sheave Single upright, removable sheave   Typically used in dinghy spars for control lines   U.V. stabilised Acetal sheave. Grade 316 stainless...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. When mounted in an inverted position, are frequently used as upright leads...

Ronstan Upright Lead Block, 19mm Acetal Sheave Single upright Typically used in dinghy spars for control lines U.V. stabilised Acetal sheave. Grade 316 stainless steel load...

Ronstan Upright Lead Block, Wide 19mm Sheave Suitable for rope up to 8mm. The external tabs can be formed to fit the spar profile before fastening Lead blocks are a low profile solution for...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Applications: Typically used in dinghy spars for control lines Materials: U...

This upright lead block with a 20mm sheave 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...

This 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...

Ronstan 25mm Nylatron Sheave, 7mm Width Suitable for use with wire or rope. Inside Diameter 6.5mm  Specifications Bore (mm) 6.5 Diameter Ø (mm)

This 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...