100% , Cotton wicks, Muslin or winter white in three widths. Made in Germany kerosene lamp wicks. Replacement wick for Victorian era, antique kerosene lamps. Railroad lanterns, nautical signal lantern wicks. Camping, beachcombing, cottage core, boho. Vintage lamps and lanterns wick. Brand new German quality manufacture. 5 meters of 15 mm (0.590551 inches) width/#1 burner fit small (& finger lamps). 5 meters of 19 mm (0.748031 inches) width/#2 standard burner fit). And 3 meters of 23 mm (0.905512 inches) width/#3 burner fit (railroad/mercantile/general store). All included. Thirteen meters total length.