These 1.5Ω coils utilize a Kanthal heating material with a 14W maximum rating, perfect for the low wattages of the T18II Starter Kits. That Kanthal material is bundled up in 100% Organic Japanese Cotton for optimal wicking purposes. Always be sure to prime your coils and let the Cotton fully saturate before use to maximize coil life. When your tank is filled, multiple wicking ports will keep your favorite e-liquid flowing to your coil to make sure you’re getting an endless flavor.