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Black Magic Air blocks are a top favorite among Big Boat performance racers and cruisers. These lightweight, free-running, and powerful performers are ideal for sail controls that experience high levels of action.
Hard Lube-Anodized: Sideplates and sheaves are treated for maximum UV protection and a smooth surface.
Center Cage: Keeps Torlon roller bearings separated and parallel to reduce friction.
Specifications
• Brand: Harken
• Reference: HBB328
• Sheave Ø: 57 mm
• Length: 114 mm
• Weight: 193 g
• Maximum line Ø: 12 mm
• Fasteners: 6 mm
• Maximum working load: 1134 kg
• Breaking load: 2268 kg
• Fastener circle: 37 mm
• Includes: Padeye
