6" RRD 29 NST 2 Candle Wicks - This is a round wick with a uniquely braided cotton core designed with tension threads that give the wick a slight, but effective, curl during combustion. The wick is directional in that capillary action flows more freely in one direction. Due to their intricate design, the RRD series provides a centered burn pool, self-trimming burn characteristics and a consistently high rate of fuel flow. These wicks work well with viscous fuels such as vegetable wax, gels and one pours. They are effective in containers and especially useful in pillars due to their concentric burn pools. The 6" length is good for Small 1 - 2 " candles.