EC2 Coil Head, Based on the popular EC coils, an upgraded EC2 series coil is introduced to this vape kit for ultra vaping experience. With 2 head sizes; 0.3ohm (Kanthal 30-80W) and 0.5ohm (Kanthal 30-100W) for you to choose from and 5pcs in each pack you'll be hard to find a reason not to buy. Get them as spare parts for your Melo 4 to enjoy a different kind of vaping!