In StockSave 12%
Type
gear
Last Seen
May 20, 2026
Harken 57mm Aluminum Low Load Black Magic Block w/Swivels
Sold byOptics Planet•Posted Apr 27, 2026
$211.95
$241.00
You save $29.05 (12% off)
Price and stock data refresh continuously from Optics Planet.
Deal Summary
- Currently in stock.
- Category: gear
- SKU: 669-B66-KQ93-3226
- Brand: Harken
Price History
Deal Details
Harken 57mm Aluminum Low Load Black Magic Block w/Swivels. 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 s