Harken 57mm Carbo Fiddle blocks offer low-friction performance and are both lightweight and robust. These compact, cost-effective blocks are designed for high working loads, ensuring safe and efficient sail trimming.

• Sheave Ø (mm): 57 mm
• Sheave Ø (in): 2 1/4 in
• Length (mm): 153 mm
• Length (in): 6 in
• Weight (g): 105 g
• Weight (oz): 3.7 oz
• Maximum line Ø (mm): 10 mm
• Maximum line Ø (in): 3/8 in
• Maximum working load (kg): 359 kg
• Maximum working load (lb): 792 lb
• Breaking load (lb): 2380 lb
• Breaking load (kg): 1080 kg
• Shackle pin Ø (mm): 5 mm
• Shackle pin Ø (in): 3/16 in