These bottom rigs are great for still fishing Trout and Walleye from shore. Also very useful for Bass, Burbot, Carp, Perch and many others. The Sinker Sack is a very simple mechanism that allows you to use rocks from the shoreline you fish as weight instead of lead! The best part is that the Sinker Sack is made out of paper, so if lost it will break down in approximately 3 months. And now for the kicker, if Sinker Sack gets caught up on the bottom (which never happens lol) Its structure will tear away, allowing you to retrieve your bottom rig! What lure saves you money!?