Harken 40mm Stand-up Block

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable.

Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

Specifications

• Sheave Ø (mm): 40 mm
• Sheave Ø (in): 1 9/16 in
• Length (mm): 64 mm
• Length (in): 2 1/2 in
• Weight (g): 40 g
• Weight (oz): 1.4 oz
• Maximum line Ø (mm): 10 mm
• Maximum line Ø (in): 3/8 in
• Maximum working load (kg): 220 kg
• Maximum working load (lb): 485 lb
• Breaking load (kg): 735 kg
• Breaking load (lb): 1620 lb