Japanese organic cotton and the“No-Spill Coil Swap System”, they can be replaced in a matter of seconds and with ease. To change the burnt out coils, open the base, remove the old coil and replace it with the new one. Close the base and the tank is ready for vaping again. Depending on whether you're light, moderate or heavy vaper, one coil will last from 1 to 3 weeks.

NOTE: These coils are not for use in the new EU TPD standard Endura T18E 2ml Tank as they are too long. The correct tank for these coils can be seen in the second image. It is the old 4.5ml tank.