 10 or 12 ounce weight with a swivel chain, and then another two foot to three foot leader with a piece of herring and a hook with a trailer hook. And what you do is let that down all the way to the bottom or to the specific depth that the captain that sees the fish on the binder. And then you slowly reel it up erratically, or you can just reel it up nice and gentle at a steady pace. And that is basically mooching or teasing the salmon up. That's where the term comes from.