Choosing the appropriate wick ensures that your candle burns properly and does not cause soot. Coil Wicks: The wick should be coated with molten paraffin and a wick holder should be attached. The wick can also be used raw in large size candles without the need for this process. Coil Wick Usage Recommendations: Thickness: 9mm – 10mm – 12mm SUITABLE FOR TEALIGHT, CANDLESTICK, PARTY, BARWARE, FLOATING AND DOOR CANDLES Thickness: 14mm – 16mm – 18mm – 20mm – 22mm Length 20 metres