This 5 pack of Kanger CLOCC Coil Heads is available with either Stainless Steel or Ni200 (Nickel) coil wire. The Ni200 coil head can only be used in temperature control mode. Stainless steel coils will fire in either wattage or temperature control modes. Both coil head types are compatible with Kanger’s Cupti starter kit. For fresh, full flavour, all CLOCC coils have authentic Japanese organic cotton wicking material.