Rubbercore is the first original idea in sinkers since the rock.Prevent line damage with these sinkers. The rubber core is gentle even on the finest filament line and lets you skip any knot tying and cutting. Simply twist the rubber ears on either end one half turn in opposite directions with your line in the opening to clamp securely onto your line and then twist them back to starting position for easy removal. This weight has many diverse applications and can be used and reused in multiple rigs because it doesn't require alterations to the line.Key FeaturesNo line damageSimple attachment and detachmentMany diverse applications