RoundRocks Trailer Hitch - A package contains 10 shanks with a Trailer Hitch attachment as well as 10 trailer hooks.Both parts are made from high carbon steel. To tie- simply tie your trailer fly as normal in your vice. Then slide the eye of the hook in the trailer hitch attachment on the front shank. Now mount the front shank in your vice and bind down the attachment with thread. Now proceed to tie your front fly. Comes in three different sizes. Large Streamer is about 3 1/4" long when attached. It's perfect for your mega streamers used to catch Monster Trout, Steelhead and Salmon. Standard Streamer size is about 2 1/2" long when attached. It's Ideal for your normal Sculpin and Wooly Bugger type streamers. Small steamer size is about 1 3/4" long when attached. Works great for stillwater and small streamer patterns. No wire, beads or glue is necessary. Made from high carbon steel10 per package