100 mm Black Magic® AirBlocks® are used on
offshore boats where weight and performance
are critical. They feature free-rolling, largediameter
aluminum sheaves with Torlon® roller
bearings housed in a unique center 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.
Use for:
Sheets, Halyards, Running backstays and Control lines.
Part Number: 3246
**Repalces
3007
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We do our best every day to ensure that our prices are the
best you can find. If within 30 days you find a better price,
we’ll refund the difference as a store credit. 
