Fishing-line attachment is an important part of the fishing process. The most common attachments are lures, snells, and hooks. A LURE is a type of artificial bait that is designed to attract fish. A snell is a length of fishing line that is tied to a HOOK in a specific way. Finally, a HOOK is a metal device with a curved point that is used to catch fish. All three of these attachments are essential for successful fishing.