RRD 40 - 6" height candle wicks are used in making 2.25" to 2.75" diameter container candles. They are pre-waxed and have a wick tab attached. RRD Wicks burn hotter than LX series wicks making them ideal for candles made using soy, beeswax, palm or other natural waxes. Wicks are 6" Tall, but additional round tabs can be purchased to attach to cut wick pieces to create other prepared wicks, providing additional economy.