ECO Wicks are constructed as a flat, coreless wick. The ECO wicks are made of cotton and are interwoven with specially treated paper filaments, which help with the wick rigidity. The ECO Series Wicks reduces the afterglow commonly seen in other paper wicks. ECO wicks have self-trimming capabilities and allow for a decrease in mushrooming and soot. All wicks are pre-tabbed. ECO 10 wicks have a melt pool diameter of 2.8 inches.