HARKEN Unit 3 3:1/Soft-Attach Threaded Adapter, 7353.22 Handle_Black they allow for multiple lines

they allow for multiple lines to be adjusted with a single winch

Bases include stand-up springs and a U-Adaptor to accept a variety of appropriate blocks

The HARKEN SnubbAir Winch Handle Adapter

Element: Harken design and engineering—value-price

Core Blocks™ is a true all-around solution

HARKEN Unit 3 3:1/Soft-Attach Threaded Adapter, 7353.22 Handle_Black they allow for multiple linesThe standard Reflex furling system for asymmetric spinnakers includes a threaded snap shackle adapter. Use the loop soft attach 3: 1 purchase to control luff tension. Recommended for use with code zero sails. Use with furling unit Reflex Unit 3