Details About ECO 10 Cotton Core Pretabbed Wicks 6" Length Great in Soy Candles 50 PCS A great choice for natural candle waxes like SOY WAX. This wick is a flat, coreless, cotton wick with unique thin paper filaments interwoven for burn stability. They are self trimming which results in minimized mushrooming, smoke and soot. Eco wicks are particularly successful in lower melt point waxes. Our ECO wicks are primed with a high melt point natural wax on 20mm by 6mm wick tabs.