![Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226] Anchoring & Docking | Anchors Having Garmin true dual 1](https://cdn.shopify.com/s/files/1/0550/4407/9795/products/93959XL.jpg?v=1762963359)
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Having Garmin true dual 1 kW CHIRP as your traditional sonar allows you to adjust CHIRP frequencies to low/medium
structure and other underwater features is easy with the Waypoint Overlay feature
Easy to install and configure
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Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226] Anchoring & Docking | Anchors Having Garmin true dual 157mm 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