Harmony Fishing Company (4 Pack) Tungsten Worm Weights [3/16 oz - Black] (Lead-Free/No Lead Weedless Worm Weights) 4 Pack - 3/16 oz (Black) Tungsten Worm Weights 100% environmentally friendly tungsten is twice as dense as lead - compact size and greater sensitivity Tungsten weights come through weeds and rocks easier than lead due to their more compact size Polished Smooth / Insert Free Interior Hole - allows easy pegging and no line damage Warrantied for one year by Harmony Fishing Company (Captain O-Ring LLC)