[{"id":465271849216,"handle":"all","title":"All Products","updated_at":"2026-07-02T07:54:28-04:00","body_html":"","published_at":"2025-11-13T06:21:51-05:00","sort_order":"best-selling","template_suffix":"all-products","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0.00"},{"column":"variant_price","relation":"less_than","condition":"4600.00"}],"published_scope":"global"},{"id":418011218176,"handle":"best-selling-collection","title":"Best selling products","updated_at":"2026-07-02T07:54:28-04:00","body_html":null,"published_at":"2024-04-24T09:08:18-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":431287468288,"handle":"boat-show-special","title":"Boat Show Special","updated_at":"2026-07-02T07:54:28-04:00","body_html":"","published_at":"2024-10-10T11:02:10-04:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"not_equals","condition":"Rainman Watermakers"},{"column":"vendor","relation":"not_equals","condition":"Epoch Batteries"}],"published_scope":"global"},{"id":418011185408,"handle":"new-collection","title":"New products","updated_at":"2026-07-02T07:54:28-04:00","body_html":null,"published_at":"2024-04-24T09:08:17-04:00","sort_order":"created-desc","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":418697314560,"handle":"sailing","title":"Sailing","updated_at":"2026-07-01T17:35:06-04:00","body_html":null,"published_at":"2024-05-03T00:55:58-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Sailing"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":418705375488,"handle":"sailing-blocks","title":"Sailing - Blocks","updated_at":"2026-07-01T05:30:03-04:00","body_html":null,"published_at":"2024-05-03T07:13:02-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Sailing | Blocks"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"web"}]
["1st Class Eligible","Brand_Harken","MAP","Sailing","Sailing | Blocks"]
Skip to content
Use this bar to show information about your cookie policy.
57mm Aluminum Low Load Black Magic Block with Swivel
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep the line from twisting. Low-load blocks have red isolators. They use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless head posts. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Specifications:
Sheave: 57mm/2-1/4in
Length: 119mm/4-11/16in
Weight: 154g/5.44oz
Shackle Pin: 6mm/1/4in
Maximum Line: 12mm / 7/16in
Maximum Working Load: 7/16kg / 1655lbs
Breaking Load: 1500kg / 3300lb
