Made from Kanthal A1. Each roll is 30 feet/10m. This alloy is the most common wire used in coil building and in standard replacement head coils. Coil AWG: 22ga;24ga;26ga;28ga;30ga; For Model: RTA/RDA/RBA Package contents:1*30ft/10m wire You will get a pure flavor taste of your e-juice, and no e-liquid spliting out of your tank.