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