The Vaporesso Eco Universal Coil or (EUC) is one of the most affordable coil systems available on the market and with the name of Vaporesso behind it, you know that what you're getting is a high quality product. This coil system changed up the way that vapers are expected to replace the atomizer head. No longer will you have to change the entire coil, simply by changing the core you will be able to get back into the game and vape the day away with your new EUC coil. For the ease of changing this coil out and with the affordability, this is a great product to purchase for those looking for the best bang for your buck. There are two versions to this coil by Vaporesso: ceramic coils, and the traditional coils that aim more towards performance with heating elements such as stainless steel, nickel and kanthal.