LEWMAR 72 mm Synchro Fiddle Block - Swivel, Becket, Cam Cleat, 29927239BK Type_Gloves The Harken 40mm Carbo Air®

The Harken 40mm Carbo Air® Single Block includes an integral becket that allows either a 2:1 or 3:1 purchase

They deliver dependable fast trim and release under high or low loads

Bases include stand-up springs and a U-Adaptor to accept a variety of appropriate blocks

They use a combination of scientifically optimized block geometry

over budget blocks on mainsheet systems

LEWMAR 72 mm Synchro Fiddle Block - Swivel, Becket, Cam Cleat, 29927239BK Type_Gloves The Harken 40mm Carbo Air®Lewmar's plain bearing Synchro Blocks are engineered for speed, efficiency, and superior handling. Lewmar uses a combination of scientifically optimized block geometry, a free spin bearing, and a swivel lock self aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother transfer of power