The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same. These strong, lightweight blocks feature free-rolling, high-load Torlon® roller bearings for a high strength-to-weight ratio. Use them for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems.
|Diameter||7/16 Inch or 11 mm|
|Integral Cleat||No Integral Cleat|
|Length||4 1/2 Inches|
|Mount Type||Mechanical Fasteners|
|Safe Working Load||2500 Pounds|
|Sheave Diameter||57 mm|
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