As the number on the label of the soy wicks increases the larger candle it is recommended for, for example the CDN 26 150mm 10pk Soy Wicks is designer for a large candle this is one of our biggest candle wicks in store and online at Artworx. For more advice on Diy candles and where to buy best wicks for soy candles and cheap candle supplies take to our art and craft staff.