Harken 57mm Triple Swivel Carbo Block
with 150 Cam-Matic Cleat
Low-friction Carbo AirBlocks®
are lightweight, strong, reliable—and affordable. Companions to the
popular Harken® Black Magic® line, these small, compact blocks have very
high working loads for safe, easy trimming.
The high-load 57 mm Carbo has a broad
working range. Use for main and jib sheets on centerboard and keelboats
like Lightnings, Dragons, Solings, and J/24s, and for mainsheet systems
Blocks feature Cam-Lock or U-Lock locking
systems to lock the shackle in front or side positions, or swivel to
keep line from twisting.