A 1" flat wick for oil lamps is a specific type of wick designed for use in larger oil lamps and lanterns. These wicks are an essential component of oil lamps, as they facilitate the capillary action that draws fuel from the reservoir to the burner, where it is ignited to produce light.Stock up on essential wicks. Made of pure cotton. 1"W x 8"L replacement oil lamp and lantern wick. Popular size for Duplex burners. .