Harken's low-friction 29mm Carbo AirBlock® is compact, lightweight and extremely strong. A companion to the popular Harken® Black Magic® line, this small, compact block has a very high working load for safe, easy trimming. This pulley is a popular addition to spinnaker systems. Harken #348.

Specifications:

• Sheave: 1-1/8" (29 mm)
• Length: 1-15/16" (49 mm)
• Weight: 0.8 oz. (23 g)
• Maximum Line Diameter: 5/16" (8mm)
• Maximum Working Load: 330 lbs. (150 kg)
• Breaking Load: 1000 lbs. (454 kg)