Lewmar 90mm Synchro Block - Double

Lewmar Synchro blocks are engineered using a combination of scientifically optimized block geometry, a Free-Spin bearing and a self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems.

• Applications:  Halyard tuning, mainsheet systems, mast foot blocks, masthead blocks, boom vang.
• Stainless steel strap for improved strength and lover service life
• Stiff glass fiber reinforced cheeks to prevent lines from wedging
• Larger sheave diameter to minimize rope friction
• Line size: 12mm  (1/2")
• Sheave diameter: 90mm
• Working load limit: 2000kg 4400lb
• Double