Eco Pro" Tungsten Heavyweight Flipping Jigs offer many advantages over lead jigs. They slide through grass and cover easier because tungsten is so much smaller than lead. Tungsten is also much more sensitive. It let's you feel more strikes, tell what kind of cover is on the bottom and catch more fish. Special seal coat painting and super premium needlepoint hooks make the Eco Pro" Tungsten Heavyweight Flipping Jigs the best on the market, period.