The flat wick is made of high-quality glass fiber or cotton material, see also wick3 is only made of cotton (without glass fiber), whichensures even combustion -for hours of operation without readjustment. Universally applicable and precisely cut to size - compatible with most brands and models of kerosene stoves. Can be fitted quickly and without tools thanks to its sophisticated design - idealfor quick wick changes on the move or in an emergency. Made from durable, robust materials.