Ronstan 30 mm Utility Pivoting Lead Block, RF30174 Product Type_Swivels and Tack Terminals They are extremely strong and

They are extremely strong and their smooth shape won't chafe line

Ball Bearing Orbit Blocks boast the highest strength-to-weight ratio available

We made our first carbon fiber mast in 1979

good mainsheet pedestal for dinghies

Ronstan 30 mm Utility Pivoting Lead Block, RF30174 Product Type_Swivels and Tack Terminals They are extremely strong andSeries 30 Utility Blocks feature stainless steel ball bearings and can be used in various rigging systems and applications, often used as primary lead blocks on dinghies and catamarans or control lines on larger yachts. Special Purpose sheave versions feature a Nylatron sheave and are compatible for use with wire rope. Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded