Screw-in lead which can simply be screwed into the belly/head of a soft plastic lure. Depending on position and weight the lure changes its balance and diving depth. Ideal in combination with the Prorex Screw-In system.
These rattles can be fixed to the soft plastic lure at any position. The small steel balls in the glass shell produce a slight clattering noise and thus can provoke the bite reflex in certain situations.