Oil lighters are designed on the principle of lockingthe oil by cotton, the principle is the same as asponge, the same volume of cotton, the higher the rate of oilabsorption, it proves that the applicability of cotton isbetter. This cotton is produced by XELPSLR,dense texture, smooth oil conduction,fine drawing, oil storage capacity is much higher than othercotton on the market, as well as longer duration, bothcost-effective and practical are very good, a packet can beinstalled about 5 pocket lighters.