Harken 100 mm Black Magic, AirBlock Single swivel/becket Cat. No. HAR 3247 Weight 2 lbs
3247 100 mm Block w/Becket
100 mm Black
Magic® AirBlocks® are used on offshore boats where weight
and performance are critical. They feature free-rolling, large-diameter
aluminum sheaves with Torlon® roller bearings housed in a unique
cage. UV-resistant, carbon-black Delrin® balls carry sideloads.
Corrosion is minimized by isolating dissimilar metals.
Blocks are Hardkote-anodized and have 17-4 PH stainless headposts and
shackles. Easily disassembled.