The Eco wick is a flat, coreless cotton wick braided with thin paper filaments. This braiding technique improves rigidity compared to CD wicks and paper-cored wicks. It has a self-trimming effect, which results in minimized mushrooming, soot, and smoke. They have been designed to significantly reduce the “afterglow” and smoke often seen in paper-cored wicks. It works better with vegetable wax rather than paraffin wax.