The Harken 40mm Carbo Air Fiddle Block is a lightweight, low-friction pulley system designed for reliable performance in sailboat rigging. This compact block is well-suited for 3:1 and 4:1 tackles on dinghy vangs and mainsheets, as well as control systems like cunninghams and internal boom outhauls on larger vessels.

• Sheave Diameter: 40mm (1-9/16 in.)
• Length: 131mm (5-1/8 in.)
• Weight: 54g (1.9 oz.)
• Shackle Pin Diameter: 4mm (5/32 in.)
• Maximum Line Diameter: 10mm (3/8 in.)
• Maximum Working Load: 220kg (485 lb.)
• Breaking Load: 735kg (1620 lb.)

Item ships same day if ordered on a weekday (excluding holidays) by 3pm EST. We try our best to also ship on Saturdays.

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