Harken Black Magic Aluminum Double Loop Block - 45 mm ( 13/4") - 3390

Harken Black Magic Aluminum Double Loop Blocks are designed for high-performance sail control systems that require lightweight strength and low-friction operation. The soft-attachment loop design supports versatile rigging configurations while Torlon® roller bearings help maintain efficient load handling under demanding sailing conditions.

Features:

• Double loop block design supports lightweight soft-attachment rigging
• Torlon® roller bearings help reduce friction under load
• Center cage keeps roller bearings separated and aligned
• Removable deadend post supports padeye attachment and lashing applications
• Suitable for mainsheet, runner, halyard, and spinnaker control systems

Specifications:

• Sheave Diameter: 45 mm (1 3/4")
• Length: 63 mm (2 1/2")
• Maximum Line Diameter: 10 mm (3/8")
• Maximum Working Load: 750 kg (1653 lbs)
• Breaking Load: 1500 kg (3306 lbs)
• Weight: 103 g (3.63 oz)