Anti-smoke cotton wick coated with beeswax. Suitable for candle making with natural waxes such as soy wax, palm wax or beeswax. Not suitable for gel wax burning. Unit: 1x 20cm Coated cotton wick + 1x additional wick sustainers + 2x wick sticker Length: 20cmMelting Point: 71°CSize #1: Recommended jar diameter 3.8cm Size #2: Recommended jar diameter 4cm Size #3: Recommended jar diameter 6cm (for our 220ml jars) Size #4: Recommended jar diameter 7cm Size #5: Recommended jar diameter 8cm Note: All candles must be burned for at least 3-4hours to avoid tunneling through the center. The size of the candle jar and the thickness of the wick must be appropriate so that the speed and the consumption rate of the candle are balanced. If a thick wick is used for a small candle jar, the candle will burn normally but it will burn quickly resulting in wasted candle. If a thin wick is used for a big candle jar, only the inner part will be burned (tunneling effect), resulting in wastage.