Lewmar 50 mm Synchro Double Block

The Lewmar Synchro Double Block is engineered for speed, efficiency and superior handling. Thanks to optimized block geometry, a free-spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. This block provides you with an easier, smoother transfer of power from deck to sail and less wear on your rope.

Features:

• Synchronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
• Reduced friction and improved efficiency levels
• Easier, smoother transfer of power from deck to sail
• Allows for less wear on the rope

Locking Swivel Head Specifications:

• Safe working load: 990 lb (450 kg)
• Weight: 5.01oz (142g)
• Maximum line size: 3/8" (10 mm)

Becket and Locking Swivel Head Specifications:

• Type: Double block with becket and locking swivel head
• Swivel can be locked in 90 or 180 degree positions
• Safe working load: 990 lb (450 kg)
• Weight: 5.77oz (164g)
• Maximum line size: 3/8" (10 mm)