Use 57 mm Black Magic® AirBlocks® on offshore
boats. These strong, lightweight blocks are sculpted
aluminum, with Torlon® rollers and carbon-black
balls for strength and UV protection. Rollers are
housed in a unique center cage and are isolated for
less friction. Blocks feature a three-way head system
and come in high- and low-load configurations.
Sheets, Halyards, Running backstays and Control lines.