Hooklinks are the sections of fishing line that connect hooks to Mainlines. They can be anything from 1" long for PVA bag or chod rigs or up 12 feet depending on what type you're using and how big your fish might get! Swivels join these two pieces together, so they don't separate while in water.
Coated Braid - The most popular kind of braid used as hooklinking in carp angling, coated braid tends to come in different variants of soft, stiff and very stiff. Your choice of coated braid depends on your lakebed.