Harken Stand-up bases allow a wide variety of blocks to be held upright, swivel freely, or pivot so lines have a fair lead under load. Springs support blocks on padeyes, eyestraps, bases, and traveler cars, and prevent blocks from hitting the deck.
Part Number: 071
Need help to design your Harken system - take a look here for the Harken System Guides and Drawings
Or perhaps you need some other information (load calculators, block selectors, service instructions or manuals)? Take a look here for all the official Harken Support Information