HARKEN Premium Sailing 57mm HL Black Magic Air Padeye Teardrop Boat Block, 57mm, Part 3223

The entire line of black magic airblocks has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same. Carrying some of the highest loads imposed by running rigging, these strong, lightweight blocks feature torlon; roller bearings housed in a center cage. Rollers stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings.

• Teardrop blocks are ideal as masthead leads and in other applications where limited articulation or direct attachment is desired. When attached to a compatible padeye, teardrop blocks will not hit the deck when lines are slack, but allow enough movement to ensure fairleads when jumping halyards
• They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface
• Sheave Ø (mm) 57 mm
• Maximum line Ø (mm) 10 mm
• Maximum working load (lb) 2500 lb