for US Continental orders over $99
Harken 100mm Black Magic Block - Double / Swivel
Our Part #: HAR3248 | Mfr. Part #: 3248
Sheave: 100 mm (3 15/16 in)
Length: 227 mm (9 1/2 in)
Weight: 1284 g (45.28 oz)
Shackle Pin: 12 mm (1/2 in)
Maximum Line: 16 mm (5/8 in)
Maximum Working Load: 4990 kg (11000 lb)
Breaking Load: 9979 Kg (22000 lb)
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.